Document:

Exhibit 4.2

                               SECURITY AGREEMENT

      SECURITY AGREEMENT (this "Agreement"), dated as of February 25, 2005, by
and between CGM Applied Security Technologies, Inc., a Delaware corporation
("Company"), and CGM Security Solutions, Inc. (the "Secured Party").

                              W I T N E S S E T H:

      WHEREAS, pursuant to a Asset Purchase Agreement, dated the date hereof
(the "Asset Purchase Agreement"), among the Company, Digital Descriptor Systems,
Inc. and the Secured Party, Company has agreed to execute and deliver to the
Secured Party and the Secured Party has agreed to accept, as partial payment for
the "Assets" defined in the Asset Purchase Agreement, a 2.86% Secured
Convertible Promissory Note (the "Note);

      WHEREAS, the Secured Party agrees and acknowledges that its rights under
this Agreement are subordinate to the rights of AJW Partners, LLC, AJW Offshore,
Ltd., AJW Qualified Partners, LLC and New Millennium Capital Partners II, LLC
(together, the "Original Secured Parties"), pursuant to a Security Agreement
between Digital Descriptor Systems, Inc. (the "Parent") and the Original Secured
Parties, dated November 30, 2004 ("NIR Security Agreement");

      Whereas, the Parent and the Original Secured Parties have entered into a
letter agreement dated as of January 31, 2005, (the "NIR Letter") which amends
certain provisions of the NIR Security Agreement and the agreements related
thereto, all of which are incorporated in this Agreement as if set forth in
their entirety herein; and

      WHEREAS, in order to induce the Secured Party to execute and deliver the
Asset Purchase Agreement and accept the Note as partial payment thereunder,
Company has agreed to execute and deliver to the Secured Party this Agreement
for the benefit of the Secured Party and to grant to it a security interest
secondary to the interests of the Original Secured Parties in certain property
of Company to secure the prompt payment, performance and discharge in full of
all of Company's obligations under the Note.

      NOW, THEREFORE, in consideration of the agreements herein contained and
for other good and valuable consideration, the receipt and sufficiency of which
is hereby acknowledged, the parties hereto hereby agree as follows:

      1.    Certain Definitions. As used in this Agreement, the following terms
shall have the meanings set forth in this Section 1. Terms used but not
otherwise defined in this Agreement that are defined in Article 9 of the UCC
(such as "general intangibles" and "proceeds") shall have the respective
meanings given such terms in Article 9 of the UCC.

            (a)   "Collateral" means the collateral in which the Secured Party
is granted a security interest by this Agreement and which shall include the
following, whether presently

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owned or existing or hereafter acquired or coming into existence, and all
additions and accessions thereto and all substitutions and replacements thereof,
and all proceeds, products and accounts thereof, including, without limitation,
all proceeds from the sale or transfer of the Collateral and of insurance
covering the same and of any tort claims in connection therewith:

                  (i) All Goods of the Company, including, without limitations,
            all machinery, equipment, computers, motor vehicles, trucks, tanks,
            boats, ships, appliances, furniture, special and general tools,
            fixtures, test and quality control devices and other equipment of
            every kind and nature and wherever situated, together with all
            documents of title and documents representing the same, all
            additions and accessions thereto, replacements therefor, all parts
            therefor, and all substitutes for any of the foregoing and all other
            items used and useful in connection with the Company's businesses
            and all improvements thereto (collectively, the "Equipment"); and

                  (ii) All Inventory of the Company; and

                  (iii) All of the Company's contract rights and general
            intangibles, including, without limitation, all partnership
            interests, stock or other securities, licenses, distribution and
            other agreements, computer software development rights, leases,
            franchises, customer lists, quality control procedures, grants and
            rights, goodwill, trademarks, service marks, trade styles, trade
            names, patents, patent applications, copyrights, deposit accounts,
            and income tax refunds (collectively, the "General Intangibles");
            and

                  (iv) All Receivables of the Company including all insurance
            proceeds, and rights to refunds or indemnification whatsoever owing,
            together with all instruments, all documents of title representing
            any of the foregoing, all rights in any merchandising, goods,
            equipment, motor vehicles and trucks which any of the same may
            represent, and all right, title, security and guaranties with
            respect to each Receivable, including any right of stoppage in
            transit; and

                  (v) All of the Company's documents, instruments and chattel
            paper, files, records, books of account, business papers, computer
            programs and the products and proceeds of all of the foregoing
            Collateral set forth in clauses (i)-(iv) above.

            (b)   "Company" shall mean, collectively, Company and all of the
subsidiaries of Company, a list of which is contained in Schedule A, attached
hereto.

            (c)   "Obligations" means all of the Company's obligations under
this Agreement, the Asset Purchase Agreement and the Note, in each case, whether
now or hereafter existing, voluntary or involuntary, direct or indirect,
absolute or contingent, liquidated or unliquidated, whether or not jointly owed
with others, and whether or not from time to time decreased or extinguished and
later decreased, created or incurred, and all or any portion of such obligations
or liabilities that are paid, to the extent all or any part of such payment is
avoided or recovered directly or indirectly from the Secured Party as a
preference, fraudulent transfer or

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otherwise as such obligations may be amended, supplemented, converted, extended
or modified from time to time.

            (d)   "UCC" means the Uniform Commercial Code, as currently in
effect in the State of New York.

      2.    Grant of Security Interest. As an inducement for the Secured Party
to accept the Note and to secure the complete and timely payment, performance
and discharge in full, as the case may be, of all of the Obligations, the
Company hereby, unconditionally and irrevocably, pledges, grants and
hypothecates to the Secured Party, a continuing security interest in, a
continuing lien secondary to the interests of the Original Secured Parties, upon
an unqualified right to possession and disposition of and a right of set-off
against, in each case to the fullest extent permitted by law, all of the
Company's right, title and interest of whatsoever kind and nature in and to the
Collateral (the "Security Interest").

      3.    Representations, Warranties, Covenants and Agreements of the
Company. The Company represents and warrants to, and covenants and agrees with,
the Secured Party as follows:

            (a)   The Company has the requisite corporate power and authority to
enter into this Agreement and otherwise to carry out its obligations thereunder.
The execution, delivery and performance by the Company of this Agreement and the
filings contemplated therein have been duly authorized by all necessary action
on the part of the Company and no further action is required by the Company.
This Agreement constitutes a legal, valid and binding obligation of the Company
enforceable in accordance with its terms, except as enforceability may be
limited by bankruptcy, insolvency, reorganization, moratorium or similar laws
affecting the enforcement of creditor's rights generally.

            (b)   The Company represents and warrants that it has no place of
business or offices where its respective books of account and records are kept
(other than temporarily at the offices of its attorneys or accountants) or
places where Collateral is stored or located, except as set forth on Schedule A
attached hereto;

            (c)   The Company is the sole owner of the Collateral (except for
non-exclusive licenses granted by the Company in the ordinary course of
business), free and clear of any liens, security interests, encumbrances, rights
or claims, and is fully authorized to grant the Security Interest in and to
pledge the Collateral. There is not on file in any governmental or regulatory
authority, agency or recording office an effective financing statement, security
agreement, license or transfer or any notice of any of the foregoing (other than
those that have been filed in favor of the Secured Party pursuant to this
Agreement) covering or affecting any of the Collateral. So long as this
Agreement shall be in effect, the Company shall not execute and shall not
knowingly permit to be on file in any such office or agency any such financing
statement or other document or instrument (except to the extent filed or
recorded in favor of the Secured Party pursuant to the terms of this Agreement).

            (d)   No part of the Collateral has been judged invalid or
unenforceable. No written claim has been received that any Collateral or the
Company's use of any Collateral

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violates the rights of any third party. There has been no adverse decision to
the Company's claim of ownership rights in or exclusive rights to use the
Collateral in any jurisdiction or to the Company's right to keep and maintain
such Collateral in full force and effect, and there is no proceeding involving
said rights pending or, to the best knowledge of the Company, threatened before
any court, judicial body, administrative or regulatory agency, arbitrator or
other governmental authority.

            (e)   The Company shall at all times maintain its books of account
and records relating to the Collateral at its principal place of business and
its Collateral at the locations set forth on Schedule A attached hereto and may
not relocate such books of account and records or tangible Collateral unless it
delivers to the Secured Party at least 30 days prior to such relocation (i)
written notice of such relocation and the new location thereof (which must be
within the United States) and (ii) evidence that appropriate financing
statements and other necessary documents have been filed and recorded and other
steps have been taken to perfect the Security Interest to create in favor of the
Secured Party valid, perfected and continuing first priority liens in the
Collateral.

            (f)   This Agreement creates in favor of the Secured Party a valid
security interest in the Collateral securing the payment and performance of the
Obligations and, upon making the filings described in the immediately following
sentence, a perfected first priority security interest in such Collateral.
Except for the filing of financing statements on Form-1 under the UCC with the
jurisdictions indicated on Schedule B, attached hereto, no authorization or
approval of or filing with or notice to any governmental authority or regulatory
body is required either (i) for the grant by the Company of, or the
effectiveness of, the Security Interest granted hereby or for the execution,
delivery and performance of this Agreement by the Company or (ii) for the
perfection of or exercise by the Secured Party of its rights and remedies
hereunder.

            (g)   On the date of execution of this Agreement, the Company will
deliver to the Secured Party one or more executed UCC financing statements on
Form-1 with respect to the Security Interest for filing with the jurisdictions
indicated on Schedule B, attached hereto and in such other jurisdictions as may
be requested by the Secured Party.

            (h)   The execution, delivery and performance of this Agreement does
not conflict with or cause a breach or default, or an event that with or without
the passage of time or notice, shall constitute a breach or default, under any
agreement to which the Company is a party or by which the Company is bound. No
consent (including, without limitation, from stock holders or creditors of the
Company) is required for the Company to enter into and perform its obligations
hereunder.

            (i)   The Company shall at all times maintain the liens and Security
Interest provided for hereunder as valid and perfected first priority liens and
security interests in the Collateral in favor of the Secured Party until this
Agreement and the Security Interest hereunder shall terminate pursuant to
Section 11. The Company hereby agrees to defend the same against any and all
persons. The Company shall safeguard and protect all Collateral for the account
of the Secured Party. At the request of the Secured Party, the Company will sign
and deliver to the Secured Party at any time or from time to time one or more
financing statements pursuant to the

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UCC (or any other applicable statute) in form reasonably satisfactory to the
Secured Party and will pay the cost of filing the same in all public offices
wherever filing is, or is deemed by the Secured Party to be, necessary or
desirable to effect the rights and obligations provided for herein. Without
limiting the generality of the foregoing, the Company shall pay all fees, taxes
and other amounts necessary to maintain the Collateral and the Security Interest
hereunder, and the Company shall obtain and furnish to the Secured Party from
time to time, upon demand, such releases and/or subordinations of claims and
liens which may be required to maintain the priority of the Security Interest
hereunder.

            (j)   The Company will not transfer, pledge, hypothecate, encumber,
license (except for non-exclusive licenses granted by the Company in the
ordinary course of business), sell or otherwise dispose of any of the Collateral
without the prior written consent of the Secured Party.

            (k)   The Company shall keep and preserve its Equipment, Inventory
and other tangible Collateral in good condition, repair and order and shall not
operate or locate any such Collateral (or cause to be operated or located) in
any area excluded from insurance coverage.

            (l)   The Company shall, within ten (10) days of obtaining knowledge
thereof, advise the Secured Party promptly, in sufficient detail, of any
substantial change in the Collateral, and of the occurrence of any event which
would have a material adverse effect on the value of the Collateral or on the
Secured Party's security interest therein.

            (m)   The Company shall promptly execute and deliver to the Secured
Party such further deeds, mortgages, assignments, security agreements, financing
statements or other instruments, documents, certificates and assurances and take
such further action as the Secured Party may from time to time request and may
in its sole discretion deem necessary to perfect, protect or enforce its
security interest in the Collateral including, without limitation, the execution
and delivery of a separate security agreement with respect to the Company's
intellectual property ("Intellectual Property Security Agreement") in which the
Secured Party has been granted a security interest hereunder, substantially in a
form acceptable to the Secured Party, which Intellectual Property Security
Agreement, other than as stated therein, shall be subject to all of the terms
and conditions hereof.

            (n)   The Company shall permit the Secured Party and its
representatives and agents to inspect the Collateral at any time, and to make
copies of records pertaining to the Collateral as may be requested by the
Secured Party from time to time.

            (o)   The Company will take all steps reasonably necessary to
diligently pursue and seek to preserve, enforce and collect any rights, claims,
causes of action and accounts receivable in respect of the Collateral.

            (p)   The Company shall promptly notify the Secured Party in
sufficient detail upon becoming aware of any attachment, garnishment, execution
or other legal process levied against any Collateral and of any other
information received by the Company that may materially affect the value of the
Collateral, the Security Interest or the rights and remedies of the Secured
Party hereunder.

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            (q)   All information heretofore, herein or hereafter supplied to
the Secured Party by or on behalf of the Company with respect to the Collateral
is accurate and complete in all material respects as of the date furnished.

            (r)   Schedule A attached hereto contains a list of all of the
subsidiaries of Company.

            (s)   The Company shall not, without the prior written consent of
the Secured Party, (i) create, incur, assume or suffer to exist any indebtedness
in excess of "$1,000,000" (exclusive of trade debt) whether secured or unsecured
other than existing as of the date hereof; (ii) directly or indirectly declare,
pay or make any dividend or distribution on any class of its stock or apply any
of its funds, property or assets to the purchase, redemption or other retirement
of any of its stock, or issue any class of stock (iii) make or permit to exist
any loans or advances to any other person or entity, including any partnership
or joint venture, except travel advances; (iv) enter into any merger,
consolidation or other reorganization with or into any other entity, unless it
is the surviving entity of such merger or consolidation; (v) materially change
the nature of the business in which it is presently engaged; (vi) enter into any
transaction with any employee, director or affiliate, except in the ordinary
course on arms-length terms; (vii) except for the sale of inventory in the
ordinary course of business, sell, lease, transfer or otherwise dispose of any
of its properties or assets.

      4.    Defaults. The following events shall be "Events of Default":

            (a)   The occurrence of an Event of Default (as defined in the Note)
under the Note or under the Asset Purchase Agreement;

            (b)   Any representation or warranty of the Company in this
Agreement or in the Intellectual Property Security Agreement shall prove to have
been incorrect in any material respect when made;

            (c)   The failure by the Company to observe or perform any of its
obligations hereunder or in the Intellectual Property Security Agreement or
under the Asset Purchase Agreement for twenty (20) days after receipt by the
Company of notice of such failure from the Secured Party; or

            (d)   Any failure to perform their obligations or any breach of
their promises set forth in the NIR Letter by any of the Original Secured
Parties identified therein.

      5.    Duty To Hold In Trust. Upon the occurrence of any Event of Default
and at any time thereafter, the Company shall, upon receipt by it of any
revenue, income or other sums subject to the Security Interest, whether payable
pursuant to the Note or otherwise, or of any check, draft, note, trade
acceptance or other instrument evidencing an obligation to pay any such sum,
hold the same in trust for the Secured Party and shall forthwith endorse and
transfer any such sums or instruments, or both, to the Secured Party for
application to the satisfaction of the Obligations.

      6.    Rights and Remedies Upon Default. Upon occurrence of any Event of
Default and at any time thereafter, the Secured Party shall have the right to
exercise all of the remedies

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conferred hereunder and under the Note, and the Secured Party shall have all the
rights and remedies of a secured party under the UCC and/or any other applicable
law (including the Uniform Commercial Code of any jurisdiction in which any
Collateral is then located). Without limitation, the Secured Party shall have
the following rights and powers:

            (a)   The Secured Party shall have the right to take possession of
the Collateral and, for that purpose, enter, with the aid and assistance of any
person, any premises where the Collateral, or any part thereof, is or may be
placed and remove the same, and the Company shall assemble the Collateral and
make it available to the Secured Party at places which the Secured Party shall
reasonably select, whether at the Company's premises or elsewhere, and make
available to the Secured Party, without rent, all of the Company's respective
premises and facilities for the purpose of the Secured Party taking possession
of, removing or putting the Collateral in saleable or disposable form.

            The Secured Party shall have the right to operate the business of
            the Company using the Collateral and shall have the right to assign,
            sell, lease or otherwise dispose of and deliver all or any part of
            the Collateral, at public or private sale or otherwise, either with
            or without special conditions or stipulations, for cash or on credit
            or for future delivery, in such parcel or parcels and at such time
            or times and at such place or places, and upon such terms and
            conditions as the Secured Party may deem commercially reasonable,
            all without (except as shall be required by applicable statute and
            cannot be waived) advertisement or demand upon or notice to the
            Company or right of redemption of the Company, which are hereby
            expressly waived. Upon each such sale, lease, assignment or other
            transfer of Collateral, the Secured Party may, unless prohibited by
            applicable law which cannot be waived, purchase all or any part of
            the Collateral being sold, free from and discharged of all trusts,
            claims, right of redemption and equities of the Company, which are
            hereby waived and released.

      7.    Applications of Proceeds. The proceeds of any such sale, lease or
other disposition of the Collateral hereunder shall be applied first, to the
expenses of retaking, holding, storing, processing and preparing for sale,
selling, and the like (including, without limitation, any taxes, fees and other
costs incurred in connection therewith) of the Collateral, to the reasonable
attorneys' fees and expenses incurred by the Secured Party in enforcing its
rights hereunder and in connection with collecting, storing and disposing of the
Collateral, and then to satisfaction of the Obligations, and to the payment of
any other amounts required by applicable law, after which the Secured Party
shall pay to the Company any surplus proceeds. If, upon the sale, license or
other disposition of the Collateral, the proceeds thereof are insufficient to
pay all amounts to which the Secured Party is legally entitled, the Company will
be liable for the deficiency, together with interest thereon, at the rate of 8%
per annum (the "Default Rate"), and the reasonable fees of any attorneys
employed by the Secured Party to collect such deficiency. To the extent
permitted by applicable law, the Company waives all claims, damages and demands
against the Secured Party arising out of the repossession, removal, retention or
sale of the Collateral, unless due to the gross negligence or willful misconduct
of the Secured Party.

      8.    Costs and Expenses. The Company agrees to pay all out-of-pocket
fees, costs and expenses incurred in connection with any filing required
hereunder, including without

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limitation, any financing statements, continuation statements, partial releases
and/or termination statements related thereto or any expenses of any searches
reasonably required by the Secured Party. The Company shall also pay all other
claims and charges which in the reasonable opinion of the Secured Party would
prejudice, imperil or otherwise materially affect the Collateral or the Security
Interest therein. The Company will also, upon demand, pay to the Secured Party
the amount of any and all reasonable expenses, including the reasonable fees and
expenses of its counsel and of any experts and agents, which the Secured Party
may incur in connection with (i) the enforcement of this Agreement, (ii) the
custody or preservation of, or the sale of, collection from, or other
realization upon, any of the Collateral, or (iii) the exercise or enforcement of
any of the rights of the Secured Party under the Note. Until so paid, any fees
payable hereunder shall be added to the principal amount of the Note and shall
bear interest at the Default Rate.

      9.    Responsibility for Collateral. The Company assumes all liabilities
and responsibility in connection with all Collateral, and the obligations of the
Company hereunder or under the Note shall in no way be affected or diminished by
reason of the loss, destruction, damage or theft of any of the Collateral or its
unavailability for any reason.

      10.   Security Interest Absolute. All rights of the Secured Party and all
Obligations of the Company hereunder, shall be absolute and unconditional,
irrespective of: (a) any lack of validity or enforceability of this Agreement,
the Note or any agreement entered into in connection with the foregoing, or any
portion hereof or thereof; (b) any change in the time, manner or place of
payment or performance of, or in any other term of, all or any of the
Obligations, or any other amendment or waiver of or any consent to any departure
from the Note or any other agreement entered into in connection with the
foregoing; (c) any exchange, release or nonperfection of any of the Collateral,
or any release or amendment or waiver of or consent to departure from any other
collateral for, or any guaranty, or any other security, for all or any of the
Obligations; (d) any action by the Secured Party to obtain, adjust, settle and
cancel in its sole discretion any insurance claims or matters made or arising in
connection with the Collateral; or (e) any other circumstance which might
otherwise constitute any legal or equitable defense available to the Company, or
a discharge of all or any part of the Security Interest granted hereby. Until
the Obligations shall have been paid and performed in full, the rights of the
Secured Party shall continue even if the Obligations are barred for any reason,
including, without limitation, the running of the statute of limitations or
bankruptcy. The Company expressly waives presentment, protest, notice of
protest, demand, notice of nonpayment and demand for performance. In the event
that at any time any transfer of any Collateral or any payment received by the
Secured Party hereunder shall be deemed by final order of a court of competent
jurisdiction to have been a voidable preference or fraudulent conveyance under
the bankruptcy or insolvency laws of the United States, or shall be deemed to be
otherwise due to any party other than the Secured Party, then, in any such
event, the Company's obligations hereunder shall survive cancellation of this
Agreement, and shall not be discharged or satisfied by any prior payment thereof
and/or cancellation of this Agreement, but shall remain a valid and binding
obligation enforceable in accordance with the terms and provisions hereof. The
Company waives all right to require the Secured Party to proceed against any
other person or to apply any Collateral which the Secured Party may hold at any
time, or to marshal assets, or to pursue any

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other remedy. The Company waives any defense arising by reason of the
application of the statute of limitations to any obligation secured hereby.

      11.   Term of Agreement. This Agreement and the Security Interest shall
terminate on the date on which all payments under the Note have been made in
full and all other Obligations have been paid or discharged. Upon such
termination, the Secured Party, at the request and at the expense of the
Company, will join in executing any termination statement with respect to any
financing statement executed and filed pursuant to this Agreement.

      12.   Power of Attorney; Further Assurances.

            (a)   The Company authorizes the Secured Party, and does hereby
make, constitute and appoint it, and its respective officers, agents, successors
or assigns with full power of substitution, as the Company's true and lawful
attorney-in-fact, with power, in its own name or in the name of the Company, to,
after the occurrence and during the continuance of an Event of Default, (i)
endorse any notes, checks, drafts, money orders, or other instruments of payment
(including payments payable under or in respect of any policy of insurance) in
respect of the Collateral that may come into possession of the Secured Party;
(ii) to sign and endorse any UCC financing statement or any invoice, freight or
express bill, bill of lading, storage or warehouse receipts, drafts against
debtors, assignments, verifications and notices in connection with accounts, and
other documents relating to the Collateral; (iii) to pay or discharge taxes,
liens, security interests or other encumbrances at any time levied or placed on
or threatened against the Collateral; (iv) to demand, collect, receipt for,
compromise, settle and sue for monies due in respect of the Collateral; and (v)
generally, to do, at the option of the Secured Party, and at the Company's
expense, at any time, or from time to time, all acts and things which the
Secured Party deems necessary to protect, preserve and realize upon the
Collateral and the Security Interest granted therein in order to effect the
intent of this Agreement and the Note, all as fully and effectually as the
Company might or could do; and the Company hereby ratifies all that said
attorney shall lawfully do or cause to be done by virtue hereof. This power of
attorney is coupled with an interest and shall be irrevocable for the term of
this Agreement and thereafter as long as any of the Obligations shall be
outstanding.

            (b)   On a continuing basis, the Company will make, execute,
acknowledge, deliver, file and record, as the case may be, in the proper filing
and recording places in any jurisdiction, including, without limitation, the
jurisdictions indicated on Schedule B, attached hereto, all such instruments,
and take all such action as may reasonably be deemed necessary or advisable, or
as reasonably requested by the Secured Party, to perfect the Security Interest
granted hereunder and otherwise to carry out the intent and purposes of this
Agreement, or for assuring and confirming to the Secured Party the grant or
perfection of a security interest in all the Collateral.

            (c)   The Company hereby irrevocably appoints the Secured Party as
the Company's attorney-in-fact, with full authority in the place and stead of
the Company and in the name of the Company, from time to time in the Secured
Party's discretion, to take any action and to execute any instrument which the
Secured Party may deem necessary or advisable to accomplish the purposes of this
Agreement, including the filing, in its sole discretion, of one or

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more financing or continuation statements and amendments thereto, relative to
any of the Collateral without the signature of the Company where permitted by
law.

      13.   Notices. All notices, requests, demands and other communications
hereunder shall be in writing, with copies to all the other parties hereto, and
shall be deemed to have been duly given when (i) if delivered by hand, upon
receipt, (ii) if sent by facsimile, upon receipt of proof of sending thereof,
(iii) if sent by nationally recognized overnight delivery service (receipt
requested), the next business day or (iv) if mailed by first-class registered or
certified mail, return receipt requested, postage prepaid, four days after
posting in the U.S. mails, in each case if delivered to the following addresses:

If to the Company:        CGM Applied Security Technologies, Inc.
                          2150 Highway 35, Suite 250
                          Sea Girt, New Jersey 08750
                          Attention:  President and Chief Executive Officer
                          Telephone:  (732) 359-0260
                          Facsimile:  (732) 359-0265

With copy to:             Sichenzia Ross Friedman Ference LLP
                          1065 Avenue of the Americas
                          New York, New York 10018
                          Attention:  Gregory Sichenzia, Esq.
                          Telephone:  (212) 930-9700
                          Facsimile:  (212) 930-9725

If to the Secured Party:  Mr. Erik Hoffer

                          24156 Yacht Club Blvd.
                          Punta Gorda, Florida 33955
                          Tel:  941-575-0971
                          Fax:  941-575-0971

With a copy to:           Joseph J. Tomasek, Esq.
                          77 North Bridge Street
                          Somerville, New Jersey 08876
                          Telephone:  (908) 429-0030
                          Facsimile:  (908) 429-0040

      14.   Other Security. To the extent that the Obligations are now or
hereafter secured by property other than the Collateral or by the guarantee,
endorsement or property of any other person, firm, corporation or other entity,
then the Secured Party shall have the right, in its sole discretion, to pursue,
relinquish, subordinate, modify or take any other action with respect thereto,
without in any way modifying or affecting any of the Secured Party's rights and
remedies hereunder.

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      15.   Miscellaneous.

            (a)   No course of dealing between the Company and the Secured
Party, nor any failure to exercise, nor any delay in exercising, on the part of
the Secured Party, any right, power or privilege hereunder or under the Note
shall operate as a waiver thereof; nor shall any single or partial exercise of
any right, power or privilege hereunder or thereunder preclude any other or
further exercise thereof or the exercise of any other right, power or privilege.

            (b)   All of the rights and remedies of the Secured Party with
respect to the Collateral, whether established hereby or by the Note or by any
other agreements, instruments or documents or by law shall be cumulative and may
be exercised singly or concurrently.

            (c)   This Agreement constitutes the entire agreement of the parties
with respect to the subject matter hereof and is intended to supersede all prior
negotiations, understandings and agreements with respect thereto. Except as
specifically set forth in this Agreement, no provision of this Agreement may be
modified or amended except by a written agreement specifically referring to this
Agreement and signed by the parties hereto.

            (d)   In the event that any provision of this Agreement is held to
be invalid, prohibited or unenforceable in any jurisdiction for any reason,
unless such provision is narrowed by judicial construction, this Agreement
shall, as to such jurisdiction, be construed as if such invalid, prohibited or
unenforceable provision had been more narrowly drawn so as not to be invalid,
prohibited or unenforceable. If, notwithstanding the foregoing, any provision of
this Agreement is held to be invalid, prohibited or unenforceable in any
jurisdiction, such provision, as to such jurisdiction, shall be ineffective to
the extent of such invalidity, prohibition or unenforceability without
invalidating the remaining portion of such provision or the other provisions of
this Agreement and without affecting the validity or enforceability of such
provision or the other provisions of this Agreement in any other jurisdiction.

            (e)   No waiver of any breach or default or any right under this
Agreement shall be considered valid unless in writing and signed by the party
giving such waiver, and no such waiver shall be deemed a waiver of any
subsequent breach or default or right, whether of the same or similar nature or
otherwise.

            (f)   This Agreement shall be binding upon and inure to the benefit
of each party hereto and its successors and assigns.

            (g)   Each party shall take such further action and execute and
deliver such further documents as may be necessary or appropriate in order to
carry out the provisions and purposes of this Agreement.

            (h)   This Agreement shall be construed in accordance with the laws
of the State of New Jersey, except to the extent the validity, perfection or
enforcement of a security interest hereunder in respect of any particular
Collateral which are governed by a jurisdiction other than the State of New
Jersey in which case such law shall govern. Each of the parties hereto
irrevocably submits to the exclusive jurisdiction of New Jersey, Superior Court,
Somerset County over any action or proceeding arising out of or relating to this
Agreement, and the parties hereto hereby irrevocably agree that all claims in
respect of such action or proceeding may be

                                       11
<PAGE>

heard and determined in such New Jersey court. The parties hereto agree that a
final judgment in any such action or proceeding shall be conclusive and may be
enforced in other jurisdictions by suit on the judgment or in any other manner
provided by law. The parties hereto further waive any objection to venue in the
State of New Jersey and any objection to an action or proceeding in the State of
New Jersey on the basis of forum non conveniens.

            (i)   EACH PARTY HERETO HEREBY AGREES TO WAIVE ITS RESPECTIVE RIGHTS
TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF
THIS AGREEMENT. THE SCOPE OF THIS WAIVER IS INTENDED TO BE ALL ENCOMPASSING OF
ANY DISPUTES THAT MAY BE FILED IN ANY COURT AND THAT RELATE TO THE SUBJECT MATER
OF THIS AGREEMENT, INCLUDING WITHOUT LIMITATION CONTRACT CLAIMS, TORT CLAIMS,
BREACH OF DUTY CLAIMS AND ALL OTHER COMMON LAW AND STATUTORY CLAIMS. EACH PARTY
HERETO ACKNOWLEDGES THAT THIS WAIVER IS A MATERIAL INDUCEMENT FOR EACH PARTY TO
ENTER INTO A BUSINESS RELATIONSHIP, THAT EACH PARTY HAS ALREADY RELIED ON THIS
WAIVER IN ENTERING INTO THIS AGREEMENT AND THAT EACH PARTY WILL CONTINUE TO RELY
ON THIS WAIVER IN THEIR RELATED FUTURE DEALINGS. EACH PARTY FURTHER WARRANTS AND
REPRESENTS THAT IT HAS REVIEWED THIS WAIVER WITH ITS LEGAL COUNSEL, AND THAT
SUCH PARTY HAS KNOWINGLY AND VOLUNTARILY WAIVES ITS RIGHTS TO A JURY TRIAL
FOLLOWING SUCH CONSULTATION. THIS WAIVER IS IRREVOCABLE, MEANING THAT,
NOTWITHSTANDING ANYTHING HEREIN TO THE CONTRARY, IT MAY NOT BE MODIFIED EITHER
ORALLY OR IN WRITING, AND THIS WAIVER SHALL APPLY TO ANY SUBSEQUENT AMENDMENTS,
RENEWALS AND SUPPLEMENTS OR MODIFICATIONS TO THIS AGREEMENT. IN THE EVENT OF A
LITIGATION, THIS AGREEMENT MAY BE FILED AS A WRITTEN CONSENT TO A TRIAL BY THE
COURT.

            (j)   This Agreement may be executed in any number of counterparts,
each of which when so executed shall be deemed to be an original and, all of
which taken together shall constitute one and the same Agreement. In the event
that any signature is delivered by facsimile transmission, such signature shall
create a valid binding obligation of the party executing (or on whose behalf
such signature is executed) the same with the same force and effect as if such
facsimile signature were the original thereof.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                       12
<PAGE>

      IN WITNESS WHEREOF, the parties hereto have caused this Security Agreement
to be duly executed on the day and year first above written.

                                     CGM APPLIED SECURITY TECHNOLOGIES, INC.

                                     By:  /s/ Anthony R. Shupin
                                          -------------------------------------
                                          Anthony R. Shupin
                                          President and Chief Executive Officer

                                     CGM SECURITY SOLUTONS, INC.

                                     By:  /s/ Erik Hoffer
                                          -------------------------------------
                                          Erik Hoffer, PresidentExhibit 4.3

                    INTELLECTUAL PROPERTY SECURITY AGREEMENT

      INTELLECTUAL PROPERTY SECURITY AGREEMENT (this "Agreement" dated as of
February 25, 2005, by and between, CGM Applied Security Technologies, Inc., a
Delaware corporation (the "Company"), and CGM Security Solutions, Inc., a
Florida corporation (the "Secured Party").

                              W I T N E S S E T H :

      WHEREAS, pursuant to a Asset Purchase Agreement, dated the date hereof
(the "Asset Purchase Agreement"), among the Company, Digital Descriptor Systems,
Inc. and the Secured Party, Company has agreed to execute and deliver to the
Secured Party and the Secured Party has agreed to accept, as partial payment for
the "Assets" defined in the Asset Purchase Agreement, a 2.86% Secured
Convertible Promissory Note (the "Note); and

      WHEREAS, the Secured Party agrees and acknowledges that its rights under
this Agreement are subordinate to the rights of AJW Partners, LLC, AJW Offshore,
Ltd., AJW Qualified Partners, LLC and New Millennium Capital Partners II, LLC
(together, the "Original Secured Parties"), pursuant to an Intellectual Property
Security Agreement between Digital Descriptor Systems, Inc. (the "Parent") and
the Original Secured Parties, dated November 30, 2004 (the "NIR IP Security
Agreement");

      Whereas, the Parent and the Original Secured Parties have entered into a
letter agreement dated as of January 31, 2005, (the "NIR Letter") which amends
certain provisions of the NIR Security Agreement and the agreements related
thereto, all of which are incorporated in this Agreement as if set forth in
their entirety herein; and

      WHEREAS, in order to induce the Secured Party to execute and deliver the
Asset Purchase Agreement and accept the Note as partial payment thereunder,
Company has agreed to execute and deliver to the Secured Party this Agreement
for the benefit of the Secured Party and to grant to it a security interest
secondary to the interests of the Original Secured Parties in certain
Intellectual Property (defined below) of Company to secure the prompt payment,
performance and discharge in full of all of Company's obligations under the
Note.

      NOW, THEREFORE, in consideration of the agreements herein contained and
for other good and valuable consideration, the receipt and sufficiency of which
is hereby acknowledged, the parties hereto hereby agree as follows:

            1.    Defined Terms. Unless otherwise defined herein, terms which
are defined in the Purchase Agreement and used herein are so used as so defined;
and the following terms shall have the following meanings:

                  "Software Intellectual Property" shall mean:

<PAGE>

                  (a)   all software programs (including all source code, object
code and all related applications and data files), whether now owned, upgraded,
enhanced, licensed or leased or hereafter acquired by the Company, above;

                  (b)   all computers and electronic data processing hardware
and firmware associated therewith;

                  (c)   all documentation (including flow charts, logic
diagrams, manuals, guides and specifications) with respect to such software,
hardware and firmware described in the preceding clauses (a) and (b); and

                  (d)   all rights with respect to all of the foregoing,
including, without limitation, any and all upgrades, modifications, copyrights,
licenses, options, warranties, service contracts, program services, test rights,
maintenance rights, support rights, improvement rights, renewal rights and
indemnifications and substitutions, replacements, additions, or model
conversions of any of the foregoing.

                  "Copyrights" shall mean (a) all copyrights, registrations and
applications for registration, issued or filed, including any reissues,
extensions or renewals thereof, by or with the United States Copyright Office or
any similar office or agency of the United States, any state thereof, or any
other country or political subdivision thereof, or otherwise, including, all
rights in and to the material constituting the subject matter thereof,
including, without limitation, any referred to in Schedule B hereto, and (b) any
rights in any material which is copyrightable or which is protected by common
law, United States copyright laws or similar laws or any law of any State,
including, without limitation, any thereof referred to in Schedule B hereto.

                  "Copyright License" shall mean any agreement, written or oral,
providing for a grant by the Company of any right in any Copyright, including,
without limitation, any thereof referred to in Schedule B hereto.

                  "Intellectual Property" shall means, collectively, the
Software Intellectual Property, Copyrights, Copyright Licenses, Patents, Patent
Licenses, Trademarks, Trademark Licenses and Trade Secrets.

                  "Obligations" means all of the Company's obligations under
this Agreement, the Asset Purchase Agreement and the Note, in each case, whether
now or hereafter existing, voluntary or involuntary, direct or indirect,
absolute or contingent, liquidated or unliquidated, whether or not jointly owed
with others, and whether or not from time to time decreased or extinguished and
later decreased, created or incurred, and all or any portion of such obligations
or liabilities that are paid, to the extent all or any part of such payment is
avoided or recovered directly or indirectly from the Secured Party as a
preference, fraudulent transfer or otherwise as such obligations may be amended,
supplemented, converted, extended or modified from time to time.

                  "Patents" shall mean (a) all letters patent of the United
States or any other country or any political subdivision thereof, and all
reissues and extensions thereof, including, without limitation, any thereof
referred to in Schedule B hereto, and (b) all applications for letters patent of
the United States and all divisions, continuations and continuations-in-part

                                       2
<PAGE>

thereof or any other country or any political subdivision, including, without
limitation, any thereof referred to in Schedule B hereto.

                  "Patent License" shall mean all agreements, whether written or
oral, providing for the grant by the Company of any right to manufacture, use or
sell any invention covered by a Patent, including, without limitation, any
thereof referred to in Schedule B hereto.

                  "Security Agreement" shall mean the a Security Agreement,
dated the date hereof between Company and the Secured Party.

                  "Trademarks" shall mean (a) all trademarks, trade names,
corporate names, company names, business names, fictitious business names, trade
styles, service marks, logos and other source or business identifiers, and the
goodwill associated therewith, now existing or hereafter adopted or acquired,
all registrations and recordings thereof, and all applications in connection
therewith, whether in the United States Patent and Trademark Office or in any
similar office or agency of the United States, any state thereof or any other
country or any political subdivision thereof, or otherwise, including, without
limitation, any thereof referred to in Schedule B hereto, and (b) all reissues,
extensions or renewals thereof.

                  "Trademark License" shall mean any agreement, written or oral,
providing for the grant by the Company of any right to use any Trademark,
including, without limitation, any thereof referred to in Schedule B hereto.

                  "Trade Secrets" shall mean common law and statutory trade
secrets and all other confidential or proprietary or useful information and all
know-how obtained by or used in or contemplated at any time for use in the
business of the Company (all of the foregoing being collectively called a "Trade
Secret"), whether or not such Trade Secret has been reduced to a writing or
other tangible form, including all documents and things embodying, incorporating
or referring in any way to such Trade Secret, all Trade Secret licenses,
including each Trade Secret license referred to in Schedule B hereto, and
including the right to sue for and to enjoin and to collect damages for the
actual or threatened misappropriation of any Trade Secret and for the breach or
enforcement of any such Trade Secret license.

            2.    Grant of Security Interest. In accordance with Section 3(m) of
the Security Agreement, to secure the complete and timely payment, performance
and discharge in full, as the case may be, of all of the Obligations, the
Company hereby, unconditionally and irrevocably, pledges, grants and
hypothecates to the Secured Party, a continuing security interest in, a
continuing lien upon secondary to the interests of the Original Secured Parties
an unqualified right to possession and disposition of and a right of set-off
against, in each case to the fullest extent permitted by law, all of the
Company's right, title and interest of whatsoever kind and nature in and to the
Intellectual Property (the "Security Interest").

            3.    Representations and Warranties. The Company hereby represents
and warrants, and covenants and agrees with, the Secured Party as follows:

                  (a)   The Company has the requisite corporate power and
authority to enter into this Agreement and otherwise to carry out its
obligations thereunder. The execution, delivery and performance by the Company
of this Agreement and the filings contemplated

                                       3
<PAGE>

therein have been duly authorized by all necessary action on the part of the
Company and no further action is required by the Company. This Agreement
constitutes a legal, valid and binding obligation of the Company enforceable in
accordance with its terms, except as enforceability may be limited by
bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the
enforcement of creditor's rights generally.

                  (b)   The Company represents and warrants that it has no place
of business or offices where its respective books of account and records are
kept (other than temporarily at the offices of its attorneys or accountants) or
places where the Intellectual Property is stored or located, except as set forth
on Schedule A attached hereto;

                  (c)   The Company is the sole owner of the Intellectual
Property (except for non-exclusive licenses granted by the Company in the
ordinary course of business), free and clear of any liens, security interests,
encumbrances, rights or claims, and is fully authorized to grant the Security
Interest in and to pledge the Intellectual Property. There is not on file in any
governmental or regulatory authority, agency or recording office an effective
financing statement, security agreement, license or transfer or any notice of
any of the foregoing (other than those that have been filed in favor of the
Secured Party pursuant to this Agreement) covering or affecting any of the
Intellectual Property. So long as this Agreement shall be in effect, the Company
shall not execute and shall not knowingly permit to be on file in any such
office or agency any such financing statement or other document or instrument
(except to the extent filed or recorded in favor of the Secured Party pursuant
to the terms of this Agreement), except for a financing statement covering
assets acquired by the Company after the date hereof, provided that the value of
the Intellectual Property covered by this Agreement along with the Collateral
(as defined in the Security Agreement) is equal to at least 150% of the
Obligations.

                  (d)   The Company shall at all times maintain its books of
account and records relating to the Intellectual Property at its principal place
of business and its Intellectual Property at the locations set forth on Schedule
A attached hereto and may not relocate such books of account and records unless
it delivers to the Secured Party at least 30 days prior to such relocation (i)
written notice of such relocation and the new location thereof (which must be
within the United States) and (ii) evidence that the necessary documents have
been filed and recorded and other steps have been taken to perfect the Security
Interest to create in favor of the Secured Party valid, perfected and continuing
first priority liens in the Intellectual Property to the extent they can be
perfected through such filings.

                  (e)   This Agreement creates in favor of the Secured Party a
valid security interest in the Intellectual Property securing the payment and
performance of the Obligations and, upon making the filings required hereunder,
a perfected first priority security interest in such Intellectual Property to
the extent that it can be perfected through such filings.

                  (f)   Upon request of the Secured Party, the Company shall
execute and deliver any and all agreements, instruments, documents, and papers
as the Secured Party may request to evidence the Secured Party's security
interest in the Intellectual Property and the goodwill and general intangibles
of the Company relating thereto or represented thereby, and the Company hereby
appoints the Secured Party its attorney-in-fact to execute and file all such
writings for the foregoing purposes, all acts of such attorney being hereby
ratified and

                                       4
<PAGE>

confirmed; such power being coupled with an interest is irrevocable until the
Obligations have been fully satisfied and are paid in full.

                  (g)   The execution, delivery and performance of this
Agreement does not conflict with or cause a breach or default, or an event that
with or without the passage of time or notice, shall constitute a breach or
default, under any agreement to which the Company is a party or by which the
Company is bound. No consent (including, without limitation, from stock holders
or creditors of the Company) is required for the Company to enter into and
perform its obligations hereunder.

                  (h)   The Company shall at all times maintain the liens and
Security Interest provided for hereunder as valid and perfected first priority
liens and security interests in the Intellectual Property to the extent they can
be perfected by filing in favor of the Secured Party until this Agreement and
the Security Interest hereunder shall terminate pursuant to Section 11. The
Company hereby agrees to defend the same against any and all persons. The
Company shall safeguard and protect all Intellectual Property for the account of
the Secured Party. Without limiting the generality of the foregoing, the Company
shall pay all fees, taxes and other amounts necessary to maintain the
Intellectual Property and the Security Interest hereunder, and the Company shall
obtain and furnish to the Secured Party from time to time, upon demand, such
releases and/or subordinations of claims and liens which may be required to
maintain the priority of the Security Interest hereunder.

                  (i)   The Company will not transfer, pledge, hypothecate,
encumber, license (except for non-exclusive licenses granted by the Company in
the ordinary course of business), sell or otherwise dispose of any of the
Intellectual Property without the prior written consent of the Secured Party.

                  (j)   The Company shall, within ten (10) days of obtaining
knowledge thereof, advise the Secured Party promptly, in sufficient detail, of
any substantial change in the Intellectual Property, and of the occurrence of
any event which would have a material adverse effect on the value of the
Intellectual Property or on the Secured Party's security interest therein.

                  (k)   The Company shall permit the Secured Party and its
representatives and agents to inspect the Intellectual Property at any time, and
to make copies of records pertaining to the Intellectual Property as may be
requested by the Secured Party from time to time.

                  (l)   The Company will take all steps reasonably necessary to
diligently pursue and seek to preserve, enforce and collect any rights, claims,
causes of action and accounts receivable in respect of the Intellectual
Property.

                  (m)   The Company shall promptly notify the Secured Party in
sufficient detail upon becoming aware of any attachment, garnishment, execution
or other legal process levied against any Intellectual Property and of any other
information received by the Company that may materially affect the value of the
Intellectual Property, the Security Interest or the rights and remedies of the
Secured Party hereunder.

                                       5
<PAGE>

                  (n)   All information heretofore, herein or hereafter supplied
to the Secured Party by or on behalf of the Company with respect to the
Intellectual Property is accurate and complete in all material respects as of
the date furnished. (o) Schedule A attached hereto contains a list of all of the
subsidiaries of Company.

                  (p)   Schedule B attached hereto includes all Licenses, and
all Patents and Patent Licenses, if any, owned by the Company in its own name as
of the date hereof. Schedule B hereto also includes all Trademarks and Trademark
Licenses, if any, owned by the Company in its own name as of the date hereof.
Schedule B hereto includes all Copyrights and Copyright Licenses, if any, owned
by the Company in its own name as of the date hereof. To the best of the
Company's knowledge, each License, Patent, Trademark and Copyright is valid,
subsisting, unexpired, enforceable and has not been abandoned. Except as set
forth in Schedule B, none of such Licenses, Patents, Trademarks and Copyrights
is the subject of any licensing or franchise agreement. To the best of the
Company's knowledge, no holding, decision or judgment has been rendered by any
Governmental Body which would limit, cancel or question the validity of any
License, Patent, Trademark or Copyright. No action or proceeding is pending (i)
seeking to limit, cancel or question the validity of any License, Patent,
Trademark or Copyright, or (ii) which, if adversely determined, would have a
material adverse effect on the value of any License, Patent, Trademark or
Copyright. The Company has used and will continue to use for the duration of
this Agreement, proper statutory notice in connection with its use of the
Patents, Trademarks and Copyrights and consistent standards of quality in
products leased or sold under the Patents, Trademarks and Copyrights.

                  (q)   With respect to any Intellectual Property:

                        (i)   such Intellectual Property is subsisting and has
                              not been adjudged invalid or unenforceable, in
                              whole or in part;

                        (ii)  such Intellectual Property is valid and
                              enforceable;

                        (iii) the Company has made all necessary filings and
                              recordations to protect its interest in such
                              Intellectual Property, including, without
                              limitation, recordations of all of its interests
                              in the Patents, Patent Licenses, Trademarks and
                              Trademark Licenses in the United States Patent and
                              Trademark Office and in corresponding offices
                              throughout the world and its claims to the
                              Copyrights and Copyright Licenses in the United
                              States Copyright Office and in corresponding
                              offices throughout the world;

                        (iv)  other than as set forth in Schedule B, the Company
                              is the exclusive owner of the entire and
                              unencumbered right, title and interest in and to
                              such Intellectual Property and no claim has been
                              made that the use of such Intellectual

                                       6
<PAGE>

                              Property infringes on the asserted rights of any
                              third party; and

                        (v)   the Company has performed and will continue to
                              perform all acts and has paid all required fees
                              and taxes to maintain each and every item of
                              Intellectual Property in full force and effect
                              throughout the world, as applicable.

                  (r)   Except with respect to any Trademark or Copyright that
the Company shall reasonably determine is of negligible economic value to the
Company, the Company shall

                        (i)   maintain each Trademark and Copyright in full
                              force free from any claim of abandonment for
                              non-use, maintain as in the past the quality of
                              products and services offered under such Trademark
                              or Copyright; employ such Trademark or Copyright
                              with the appropriate notice of registration; not
                              adopt or use any mark which is confusingly similar
                              or a colorable imitation of such Trademark or
                              Copyright unless the Secured Party shall obtain a
                              perfected security interest in such mark pursuant
                              to this Agreement; and not (and not permit any
                              licensee or sublicensee thereof to) do any act or
                              knowingly omit to do any act whereby any Trademark
                              or Copyright may become invalidated;

                        (ii)  not, except with respect to any Patent that it
                              shall reasonably determine is of negligible
                              economic value to it, do any act, or omit to do
                              any act, whereby any Patent may become abandoned
                              or dedicated; and

                        (iii) notify the Secured Party immediately if it knows,
                              or has reason to know, that any application or
                              registration relating to any Patent, Trademark or
                              Copyright may become abandoned or dedicated, or of
                              any adverse determination or development
                              (including, without limitation, the institution
                              of, or any such determination or development in,
                              any proceeding in the United States Patent and
                              Trademark Office, United States Copyright Office
                              or any court or tribunal in any country) regarding
                              its ownership of any Patent, Trademark or
                              Copyright or its right to register the same or to
                              keep and maintain the same.

                  (s)   Whenever the Company, either by itself or through any
agent, employee, licensee or designee, shall file an application for the
registration of any Patent, Trademark or Copyright with the United States Patent
and Trademark Office, United States Copyright Office or any similar office or
agency in any other country or any political subdivision thereof or acquire
rights to any new Patent, Trademark or Copyright whether or not registered,
report such filing to the Secured Party within five business days after the last
day of the fiscal quarter in which such filing occurs.

                  (t)   The Company shall take all reasonable and necessary
steps, including, without limitation, in any proceeding before the United States
Patent and Trademark Office, United States Copyright Office or any similar
office or agency in any other country or any political subdivision thereof, to
maintain and pursue each application (and to obtain the

                                       7
<PAGE>

relevant registration) and to maintain each registration of the Patents,
Trademarks and Copyrights, including, without limitation, filing of applications
for renewal, affidavits of use and affidavits of incontestability.

                  (u)   In the event that any Patent, Trademark or Copyright
included in the Intellectual Property is infringed, misappropriated or diluted
by a third party, promptly notify the Secured Party after it learns thereof and
shall, unless it shall reasonably determine that such Patent, Trademark or
Copyright is of negligible economic value to it, which determination it shall
promptly report to the Secured Party, promptly sue for infringement,
misappropriation or dilution, to seek injunctive relief where appropriate and to
recover any and all damages for such infringement, misappropriation or dilution,
or take such other actions as it shall reasonably deem appropriate under the
circumstances to protect such Patent, Trademark or Copyright. If the Company
lacks the financial resources to comply with this Section 3(t), the Company
shall so notify the Secured Party and shall cooperate fully with any enforcement
action undertaken by the Secured Party on behalf of the Company.

            4.    Defaults. The following events shall be "Events of Default":

                  (a)   The occurrence of an Event of Default (as defined in the
Note) under the Note or under the Asset Purchase Agreement;

                  (b)   Any representation or warranty of the Company in this
Agreement or in the Security Agreement shall prove to have been incorrect in any
material respect when made;

                  (c)   The failure by the Company to observe or perform any of
its obligations hereunder or in the Security Agreement or under the Asset
Purchase Agreement for twenty (20) days after receipt by the Company of notice
of such failure from the Secured Party; or

                  (d)   Any failure to perform their obligations or any breach
of their promises set forth in the NIR Letter by any of the Original Secured
Parties identified therein.

            5.    Duty To Hold In Trust. Upon the occurrence of any Event of
Default and at any time thereafter, the Company shall, upon receipt by it of any
revenue, income or other sums subject to the Security Interest, whether payable
pursuant to the Note or otherwise, or of any check, draft, note, trade
acceptance or other instrument evidencing an obligation to pay any such sum,
hold the same in trust for the Secured Party and shall forthwith endorse and
transfer any such sums or instruments, or both, to the Secured Party for
application to the satisfaction of the Obligations.

            6.    Rights and Remedies Upon Default. Upon occurrence of any Event
of Default and at any time thereafter, the Secured Party shall have the right to
exercise all of the remedies conferred hereunder and under the Note, and the
Secured Party shall have all the rights and remedies of a secured party under
the UCC and/or any other applicable law (including the

                                       8
<PAGE>

Uniform Commercial Code of any jurisdiction in which any Intellectual Property
is then located). Without limitation, the Secured Party shall have the following
rights and powers:

                  (a)   The Secured Party shall have the right to take
possession of the Intellectual Property and, for that purpose, enter, with the
aid and assistance of any person, any premises where the Intellectual Property,
or any part thereof, is or may be placed and remove the same, and the Company
shall assemble the Intellectual Property and make it available to the Secured
Party at places which the Secured Party shall reasonably select, whether at the
Company's premises or elsewhere, and make available to the Secured Party,
without rent, all of the Company's respective premises and facilities for the
purpose of the Secured Party taking possession of, removing or putting the
Intellectual Property in saleable or disposable form.

                  (b) The Secured Party shall have the right to operate the
business of the Company using the Intellectual Property and shall have the right
to assign, sell, lease or otherwise dispose of and deliver all or any part of
the Intellectual Property, at public or private sale or otherwise, either with
or without special conditions or stipulations, for cash or on credit or for
future delivery, in such parcel or parcels and at such time or times and at such
place or places, and upon such terms and conditions as the Secured Party may
deem commercially reasonable, all without (except as shall be required by
applicable statute and cannot be waived) advertisement or demand upon or notice
to the Company or right of redemption of the Company, which are hereby expressly
waived. Upon each such sale, lease, assignment or other transfer of Intellectual
Property, the Secured Party may, unless prohibited by applicable law which
cannot be waived, purchase all or any part of the Intellectual Property being
sold, free from and discharged of all trusts, claims, right of redemption and
equities of the Company, which are hereby waived and released.

            7.    Applications of Proceeds. The proceeds of any such sale, lease
or other disposition of the Intellectual Property hereunder shall be applied
first, to the expenses of retaking, holding, storing, processing and preparing
for sale, selling, and the like (including, without limitation, any taxes, fees
and other costs incurred in connection therewith) of the Intellectual Property,
to the reasonable attorneys' fees and expenses incurred by the Secured Party in
enforcing its rights hereunder and in connection with collecting, storing and
disposing of the Intellectual Property, and then to satisfaction of the
Obligations, and to the payment of any other amounts required by applicable law,
after which the Secured Party shall pay to the Company any surplus proceeds. If,
upon the sale, license or other disposition of the Intellectual Property, the
proceeds thereof are insufficient to pay all amounts to which the Secured Party
is legally entitled, the Company will be liable for the deficiency, together
with interest thereon, at the rate of 8% per annum (the "Default Rate"), and the
reasonable fees of any attorneys employed by the Secured Party to collect such
deficiency. To the extent permitted by applicable law, the Company waives all
claims, damages and demands against the Secured Party arising out of the
repossession, removal, retention or sale of the Intellectual Property, unless
due to the gross negligence or willful misconduct of the Secured Party.

            8.    Costs and Expenses. The Company agrees to pay all
out-of-pocket fees, costs and expenses incurred in connection with any filing
required hereunder, including without limitation, any financing statements,
continuation statements, partial releases and/or termination statements related
thereto or any expenses of any searches reasonably required by the Secured

                                       9
<PAGE>

Party. The Company shall also pay all other claims and charges which in the
reasonable opinion of the Secured Party would prejudice, imperil or otherwise
materially affect the Intellectual Property or the Security Interest therein.
The Company will also, upon demand, pay to the Secured Party the amount of any
and all reasonable expenses, including the reasonable fees and expenses of its
counsel and of any experts and agents, which the Secured Party may incur in
connection with (i) the enforcement of this Agreement, (ii) the custody or
preservation of, or the sale of, collection from, or other realization upon, any
of the Intellectual Property, or (iii) the exercise or enforcement of any of the
rights of the Secured Party under the Note. Until so paid, any fees payable
hereunder shall be added to the principal amount of the Note and shall bear
interest at the Default Rate.

            9.    Responsibility for Intellectual Property. The Company assumes
all liabilities and responsibility in connection with all Intellectual Property,
and the obligations of the Company hereunder or under the Note shall in no way
be affected or diminished by reason of the loss, destruction, damage or theft of
any of the Intellectual Property or its unavailability for any reason.

            10. Security Interest Absolute. All rights of the Secured Party and
all Obligations of the Company hereunder, shall be absolute and unconditional,
irrespective of: (a) any lack of validity or enforceability of this Agreement,
the Note or any agreement entered into in connection with the foregoing, or any
portion hereof or thereof; (b) any change in the time, manner or place of
payment or performance of, or in any other term of, all or any of the
Obligations, or any other amendment or waiver of or any consent to any departure
from the Note or any other agreement entered into in connection with the
foregoing; (c) any exchange, release or nonperfection of any of the Intellectual
Property, or any release or amendment or waiver of or consent to departure from
any other Intellectual Property for, or any guaranty, or any other security, for
all or any of the Obligations; (d) any action by the Secured Party to obtain,
adjust, settle and cancel in its sole discretion any insurance claims or matters
made or arising in connection with the Intellectual Property; or (e) any other
circumstance which might otherwise constitute any legal or equitable defense
available to the Company, or a discharge of all or any part of the Security
Interest granted hereby. Until the Obligations shall have been paid and
performed in full, the rights of the Secured Party shall continue even if the
Obligations are barred for any reason, including, without limitation, the
running of the statute of limitations or bankruptcy. The Company expressly
waives presentment, protest, notice of protest, demand, notice of nonpayment and
demand for performance. In the event that at any time any transfer of any
Intellectual Property or any payment received by the Secured Party hereunder
shall be deemed by final order of a court of competent jurisdiction to have been
a voidable preference or fraudulent conveyance under the bankruptcy or
insolvency laws of the United States, or shall be deemed to be otherwise due to
any party other than the Secured Party, then, in any such event, the Company's
obligations hereunder shall survive cancellation of this Agreement, and shall
not be discharged or satisfied by any prior payment thereof and/or cancellation
of this Agreement, but shall remain a valid and binding obligation enforceable
in accordance with the terms and provisions hereof. The Company waives all right
to require the Secured Party to proceed against any other person or to apply any
Intellectual Property which the Secured Party may hold at any time, or to
marshal assets, or to pursue any other remedy. The Company waives any defense
arising by reason of the application of the statute of limitations to any
obligation secured hereby.

                                       10
<PAGE>

            11.   Term of Agreement. This Agreement and the Security Interest
shall terminate on the date on which all payments under the Note have been made
in full and all other Obligations have been paid or discharged. Upon such
termination, the Secured Party, at the request and at the expense of the
Company, will join in executing any termination statement with respect to any
financing statement executed and filed pursuant to this Agreement.

            12.   Power of Attorney; Further Assurances.

                  (a)   The Company authorizes the Secured Party, and does
hereby make, constitute and appoint it, and its respective officers, agents,
successors or assigns with full power of substitution, as the Company's true and
lawful attorney-in-fact, with power, in its own name or in the name of the
Company, to, after the occurrence and during the continuance of an Event of
Default, (i) endorse any notes, checks, drafts, money orders, or other
instruments of payment (including payments payable under or in respect of any
policy of insurance) in respect of the Intellectual Property that may come into
possession of the Secured Party; (ii) to sign and endorse any UCC financing
statement or any invoice, freight or express bill, bill of lading, storage or
warehouse receipts, drafts against debtors, assignments, verifications and
notices in connection with accounts, and other documents relating to the
Intellectual Property; (iii) to pay or discharge taxes, liens, security
interests or other encumbrances at any time levied or placed on or threatened
against the Intellectual Property; (iv) to demand, collect, receipt for,
compromise, settle and sue for monies due in respect of the Intellectual
Property; and (v) generally, to do, at the option of the Secured Party, and at
the Company's expense, at any time, or from time to time, all acts and things
which the Secured Party deems necessary to protect, preserve and realize upon
the Intellectual Property and the Security Interest granted therein in order to
effect the intent of this Agreement and the Note, all as fully and effectually
as the Company might or could do; and the Company hereby ratifies all that said
attorney shall lawfully do or cause to be done by virtue hereof. This power of
attorney is coupled with an interest and shall be irrevocable for the term of
this Agreement and thereafter as long as any of the Obligations shall be
outstanding.

                  (b)   On a continuing basis, the Company will make, execute,
acknowledge, deliver, file and record, as the case may be, in the proper filing
and recording places in any jurisdiction, including, without limitation, the
jurisdictions indicated on Schedule C, attached hereto, all such instruments,
and take all such action as may reasonably be deemed necessary or advisable, or
as reasonably requested by the Secured Party, to perfect the Security Interest
granted hereunder and otherwise to carry out the intent and purposes of this
Agreement, or for assuring and confirming to the Secured Party the grant or
perfection of a security interest in all the Intellectual Property.

                  (c) The Company hereby irrevocably appoints the Secured Party
as the Company's attorney-in-fact, with full authority in the place and stead of
the Company and in the name of the Company, from time to time in the Secured
Party's discretion, to take any action and to execute any instrument which the
Secured Party may deem necessary or advisable to accomplish the purposes of this
Agreement, including the filing, in its sole discretion, of one or more
financing or continuation statements and amendments thereto, relative to any of
the Intellectual Property without the signature of the Company where permitted
by law.

                                       11
<PAGE>

            13.   Notices. All notices, requests, demands and other
communications hereunder shall be in writing, with copies to all the other
parties hereto, and shall be deemed to have been duly given when (i) if
delivered by hand, upon receipt, (ii) if sent by facsimile, upon receipt of
proof of sending thereof, (iii) if sent by nationally recognized overnight
delivery service (receipt requested), the next business day or (iv) if mailed by
first-class registered or certified mail, return receipt requested, postage
prepaid, four days after posting in the U.S. mails, in each case if delivered to
the following addresses:

If to the Company:       CGM Applied Security Technologies, Inc.
                         2150 Highway 35, Suite 250
                         Sea Girt, New Jersey 08750
                         Attention:    President and Chief Executive Officer
                         Telephone:  (732) 359-0260
                         Facsimile:   (732) 359-0265

With copy to:            Sichenzia Ross Friedman Ference LLP
                         1065 Avenue of the Americas
                         New York, New York 10018
                         Attention:  Gregory Sichenzia, Esq.
                         Telephone:  (212) 930-9700
                         Facsimile:  (212) 930-9725

If to the Secured Party: Mr. Erik Hoffer

                         24156 Yacht Club Blvd.
                         Punta Gorda, Florida 33955
                         Tel:  941-575-0971
                         Fax:  941-575-0971

With a copy to:          Joseph J. Tomasek, Esq.
                         77 North Bridge Street
                         Somerville, New Jersey 08876
                         Telephone:  (908) 429-0030
                         Facsimile:   (908) 429-0040

            14.   Other Security. To the extent that the Obligations are now or
hereafter secured by property other than the Intellectual Property or by the
guarantee, endorsement or property of any other person, firm, corporation or
other entity, then the Secured Party shall have the right, in its sole
discretion, to pursue, relinquish, subordinate, modify or take any other action
with respect thereto, without in any way modifying or affecting any of the
Secured Party's rights and remedies hereunder.

                                       12
<PAGE>

            15.   Miscellaneous.

                  (a)   No course of dealing between the Company and the Secured
Party, nor any failure to exercise, nor any delay in exercising, on the part of
the Secured Party, any right, power or privilege hereunder or under the Note
shall operate as a waiver thereof; nor shall any single or partial exercise of
any right, power or privilege hereunder or thereunder preclude any other or
further exercise thereof or the exercise of any other right, power or privilege.

                  (b)   All of the rights and remedies of the Secured Party with
respect to the Intellectual Property, whether established hereby or by the Note
or by any other agreements, instruments or documents or by law shall be
cumulative and may be exercised singly or concurrently.

                  (c)   This Agreement and the Security Agreement constitute the
entire agreement of the parties with respect to the subject matter hereof and is
intended to supersede all prior negotiations, understandings and agreements with
respect thereto. Except as specifically set forth in this Agreement, no
provision of this Agreement may be modified or amended except by a written
agreement specifically referring to this Agreement and signed by the parties
hereto.

                  (d)   In the event that any provision of this Agreement is
held to be invalid, prohibited or unenforceable in any jurisdiction for any
reason, unless such provision is narrowed by judicial construction, this
Agreement shall, as to such jurisdiction, be construed as if such invalid,
prohibited or unenforceable provision had been more narrowly drawn so as not to
be invalid, prohibited or unenforceable. If, notwithstanding the foregoing, any
provision of this Agreement is held to be invalid, prohibited or unenforceable
in any jurisdiction, such provision, as to such jurisdiction, shall be
ineffective to the extent of such invalidity, prohibition or unenforceability
without invalidating the remaining portion of such provision or the other
provisions of this Agreement and without affecting the validity or
enforceability of such provision or the other provisions of this Agreement in
any other jurisdiction.

                  (e)   No waiver of any breach or default or any right under
this Agreement shall be considered valid unless in writing and signed by the
party giving such waiver, and no such waiver shall be deemed a waiver of any
subsequent breach or default or right, whether of the same or similar nature or
otherwise.

                  (f)   This Agreement shall be binding upon and inure to the
benefit of each party hereto and its successors and assigns.

                  (g)   Each party shall take such further action and execute
and deliver such further documents as may be necessary or appropriate in order
to carry out the provisions and purposes of this Agreement.

                  (h) This Agreement shall be construed in accordance with the
laws of the State of New Jersey, except to the extent the validity, perfection
or enforcement of a security interest hereunder in respect of any particular
Intellectual Property which are governed by a jurisdiction other than the State
of New Jersey in which case such law shall govern. Each of the parties hereto
irrevocably submit to the exclusive jurisdiction of New Jersey Superior Court,
Somerset County, over any action or proceeding arising out of or relating to
this Agreement, and

                                       13
<PAGE>

the parties hereto hereby irrevocably agree that all claims in respect of such
action or proceeding may be heard and determined in such New Jersey. The parties
hereto agree that a final judgment in any such action or proceeding shall be
conclusive and may be enforced in other jurisdictions by suit on the judgment or
in any other manner provided by law. The parties hereto further waive any
objection to venue in the State of New Jersey and any objection to an action or
proceeding in the State of New Jersey on the basis of forum non conveniens.

                  (i)   EACH PARTY HERETO HEREBY AGREES TO WAIVE ITS RESPECTIVE
RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT
OF THIS AGREEMENT. THE SCOPE OF THIS WAIVER IS INTENDED TO BE ALL ENCOMPASSING
OF ANY DISPUTES THAT MAY BE FILED IN ANY COURT AND THAT RELATE TO THE SUBJECT
MATER OF THIS AGREEMENT, INCLUDING WITHOUT LIMITATION CONTRACT CLAIMS, TORT
CLAIMS, BREACH OF DUTY CLAIMS AND ALL OTHER COMMON LAW AND STATUTORY CLAIMS.
EACH PARTY HERETO ACKNOWLEDGES THAT THIS WAIVER IS A MATERIAL INDUCEMENT FOR
EACH PARTY TO ENTER INTO A BUSINESS RELATIONSHIP, THAT EACH PARTY HAS ALREADY
RELIED ON THIS WAIVER IN ENTERING INTO THIS AGREEMENT AND THAT EACH PARTY WILL
CONTINUE TO RELY ON THIS WAIVER IN THEIR RELATED FUTURE DEALINGS. EACH PARTY
FURTHER WARRANTS AND REPRESENTS THAT IT HAS REVIEWED THIS WAIVER WITH ITS LEGAL
COUNSEL, AND THAT SUCH PARTY HAS KNOWINGLY AND VOLUNTARILY WAIVES ITS RIGHTS TO
A JURY TRIAL FOLLOWING SUCH CONSULTATION. THIS WAIVER IS IRREVOCABLE, MEANING
THAT, NOTWITHSTANDING ANYTHING HEREIN TO THE CONTRARY, IT MAY NOT BE MODIFIED
EITHER ORALLY OR IN WRITING, AND THIS WAIVER SHALL APPLY TO ANY SUBSEQUENT
AMENDMENTS, RENEWALS AND SUPPLEMENTS OR MODIFICATIONS TO THIS AGREEMENT. IN THE
EVENT OF A LITIGATION, THIS AGREEMENT MAY BE FILED AS A WRITTEN CONSENT TO A
TRIAL BY THE COURT.

                  (j) This Agreement may be executed in any number of
counterparts, each of which when so executed shall be deemed to be an original
and, all of which taken together shall constitute one and the same Agreement. In
the event that any signature is delivered by facsimile transmission, such
signature shall create a valid binding obligation of the party executing (or on
whose behalf such signature is executed) the same with the same force and effect
as if such facsimile signature were the original thereof.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                       14
<PAGE>

      IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed on the day and year first above written.

                                       CGM APPLIED SECURITY TECHNOLOGIES, INC.

                                       By: /s/ Anthony R. Shupin
                                           -------------------------------------
                                           Anthony R. Shupin
                                           President and Chief Executive Officer

                                       CGM SECURITY SOLUTIONS, INC.

                                       By: /s/ Erik Hoffer
                                           -------------------------------------
                                           Erik Hoffer, President

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