Document:

EXHIBIT 10.26

                       NOTE AND WARRANT PURCHASE AGREEMENT

      This Note and  Warrant  Purchase  Agreement,  dated as of December 8, 2003
(the  "Agreement"),   is  entered  into  by  and  among  Guardian   Technologies
International,  Inc., a Delaware  corporation (the  "Company"),  and each of the
undersigned  purchasers   (collectively  the  "Purchasers"  and  individually  a
"Purchaser") listed on the Schedule of Purchasers attached hereto as Exhibit A.

                                     RECITAL

      On the  terms  and  subject  to  the  conditions  set  forth  herein,  the
Purchasers  are willing to purchase  from the Company and the Company is willing
to sell to the Purchasers,  Convertible Promissory Notes (individually a "Note",
and   collectively,   the  "Notes")  and  warrants  to  purchase   common  stock
(individually,  a "Warrant",  and collectively,  the "Warrants") to be issued by
the Company in the principal amounts and for the number of shares, respectively,
set forth opposite each Purchaser's name on the Schedule of Purchasers.

                                    AGREEMENT

      NOW,   THEREFORE,   in   consideration   of   the   foregoing,   and   the
representations, warranties, and conditions set forth below, the parties hereto,
intending to be legally bound, hereby agree as follows:

1. Notes and Warrants.

      a.    Issuance   of   Notes   and   Warrants.   In   reliance   upon   the
            representations,  warranties  and covenants of the parties set forth
            herein,  the  Company  agrees  to  issue,  sell and  deliver  to the
            Purchasers,  and the Purchasers  agree to purchase from the Company,
            the  Notes  and  Warrants.  The  purchase  price  for the  Notes and
            Warrants shall be payable in immediately available funds.

      b.    Terms of the Notes and  Warrants.  The terms and  conditions  of the
            Notes and  Warrants  are set forth in the forms of Note and  Warrant
            attached  hereto.  Capitalized  terms not otherwise  defined  herein
            shall have the meaning set forth in Note and Warrant.

      c.    Delivery.  The  Company  will  deliver to each  Purchaser a Note and
            Warrant to be purchased  by such  Purchaser  against  receipt by the
            Company of the purchase price for such Note.

2.    Representations  and  Warranties  of  the  Company.   The  Company  hereby
      represents and warrants to the Purchaser that:

      a.    Organization  and  Standing.  The  Company  is  a  corporation  duly
            organized,  validly  existing and in good standing under the laws of
            the State of  Delaware  and has all  requisite  corporate  power and
            authority  to  carry  on  its  businesses  as now  conducted  and as
            proposed to be conducted.

      b.    Corporate  Power.  The Company  has all  requisite  corporate  power
            necessary  for the  authorization,  execution  and  delivery of this
            Agreement,  and the Warrants, to sell and issue the Notes hereunder,
            to carry out and perform all of its  obligations  under the terms of
            this Agreement,  and to carry on its business as presently conducted
            and as presently proposed to be conducted, and such other agreements

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            and instruments.  Each of the Agreement,  the Notes and the Warrants
            is a valid and binding  obligation  of the Company,  enforceable  in
            accordance  with its  terms,  except as the same may be  limited  by
            bankruptcy,  insolvency,  moratorium,  and  other  laws  of  general
            application affecting the enforcement of creditors' rights.

      c.    Capitalization. As of December 3, 2003, the authorized capital stock
            of the  Company is  Fifteen  million  (15,000,000)  shares of Common
            Stock and One million  (1,000,000)  shares of Preferred  Stock,  and
            there are issued and outstanding (i) 13,498,500 shares of the Common
            Stock, (ii) 5,527 shares of Series A Preferred Stock,  (iii) 1,303.3
            shares  of  Series B  Preferred  Stock  (iv) 705  shares of Series C
            Preferred  Stock,  (v)  warrants to purchase an  aggregate of 21,800
            shares of Common Stock, and (vi) an aggregate of 7,535,300 shares of
            Common Stock  reserved for issuance upon  conversion of the Series A
            Preferred  Stock,  Series B  Preferred  Stock and Series C Preferred
            Stock.  All such  issued  and  outstanding  shares  have  been  duly
            authorized and validly  issued,  are fully paid and  non-assessable,
            and were issued in compliance with all applicable  state and federal
            laws concerning the issuance of securities.  From the period between
            December 3, 2003,  and the date  hereof,  the Company has not issued
            any shares of capital stock,  nor granted any warrants or options to
            purchase shares of Common Stock.

      d.    Authorization.

            i.    Corporate  Action.  All  corporate  action  on the part of the
                  Company,  its officers,  directors and stockholders  necessary
                  for the sale and issuance of the Notes and the  authorization,
                  execution  and   performance  of  the  Company's   obligations
                  hereunder and under the Warrants has been taken.

            ii.   Valid  issuance.  The Notes,  the Warrants,  and any shares of
                  common or preferred  stock issued upon  conversion or exercise
                  of the Notes or Warrants (the "Conversion  Securities"),  when
                  issued in compliance  with the  provisions  of this  Agreement
                  will be validly issued, fully paid and non-assessable and will
                  be free of  restrictions  on transfer other than  restrictions
                  under the  Warrants  and under  applicable  federal  and state
                  securities laws.

      e.    No  Preemptive  Rights.  No person has any right of first refusal or
            any preemptive  rights in connection with the issuance of the Notes,
            the Warrants or  Conversion  Securities  or any future  issuances of
            securities by the Company.

      f.    Compliance  with Other  Instruments.  The  execution,  delivery  and
            performance of and compliance with this Agreement,  the Notes or the
            Warrants by the Company, and the issuance and sale of the Conversion
            Securities,  will not result in any violation of the  Certificate of
            Incorporation  or Bylaws of the  Company or in any  violation  of or
            default in any  material  respect  under the terms of any  mortgage,
            indenture, contract, agreement, instrument, judgment or decree.

      g.    Offering.  In reliance on the  representations and warranties of the
            Purchaser in Section 3 hereof,  the offer,  sale and issuance of the
            Notes  and  the  Warrants  in  conformity  with  the  terms  of this
            Agreement, the Notes and the Warrants will not result in a violation

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            of the Securities Act of 1933, as amended (the "Securities Act"), or
            any  state   securities   laws,   including  the   qualification  or
            registration requirements of applicable blue sky laws.

      h. Company Reports; Disclosure.

            i.    Company Reports. For the purposes of this Agreement,  the term
                  "Company Reports" shall mean, collectively,  each registration
                  statement,  report,  proxy statement or information  statement
                  filed with the Securities and Exchange  Commission (the "SEC")
                  since June 26, 2003 (date of the reverse acquisition),  in the
                  form (including exhibits,  annexes and any amendments thereto)
                  filed with the SEC. As of their respective  dates, the Company
                  Reports   complied   in  all   material   respects   with  the
                  requirements of the Securities Act and the Securities Exchange
                  Act of 1934,  as amended  (the  "Exchange  Act"),  and did not
                  contain  any untrue  statement  of a material  fact or omit to
                  state  a  material  fact  required  to be  stated  therein  or
                  necessary to make the statements made therein, in light of the
                  circumstances in which they were made, not misleading. Nothing
                  has  occurred  since  November 14, 2003 (the date of filing of
                  the Company's Form 10-Q reporting the nine month period ending
                  September  30,  2003)  which  would  require the filing of any
                  additional  report or of any  amendment  to any of the Company
                  Reports  with the SEC, or which would cause any of the Company
                  Reports to contain any untrue  statement of a material fact or
                  omit to state a material fact required to be stated therein or
                  necessary to make the statements made therein, in light of the
                  circumstances in which they were made, not misleading.

            ii.   Disclosure.  No  representation  or warranty by the Company in
                  this Agreement, or in any document or certificate furnished or
                  to  be  furnished  to  the  Purchaser  pursuant  hereto  or in
                  connection with the  transactions  contemplated  hereby,  when
                  taken together,  contains or will contain any untrue statement
                  of a  material  fact or omits or will omit to state a material
                  fact necessary to make the statements made herein and therein,
                  in the light of the  circumstances  under which they were made
                  herein and therein,  in the light of the  circumstances  under
                  which they were made, not  misleading.  The Company has either
                  filed with the SEC or fully  provided the  Purchaser  with all
                  the information  necessary for the Purchaser to decide whether
                  to purchase the Note.

3.    Representations and Warranties by the Purchaser.  The Purchaser represents
      and  warrants  to the  Company as of the time of issuance of the Notes and
      Warrants as follows:

      a.    Investment  Intent:  Authority.  This  Agreement  is made  with  the
            Purchaser in reliance upon such  Purchaser's  representation  to the
            Company,  evidenced by Purchaser's execution of this Agreement, that
            Purchaser  is  acquiring   the  Note  and  Warrant,   including  the
            Conversion  Securities,  for  investment  for such  Purchaser's  own
            account, not as nominee or agent, for investment and not with a view
            to, or for resale in connection  with,  any  distribution  or public
            offering thereof within the meaning of the Securities Act. Purchaser

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<PAGE>

            has the full right, power,  authority and capacity to enter into and
            perform this Agreement and this  Agreement  will  constitute a valid
            and binding  obligation  upon  Purchaser,  except as the same may be
            limited by  bankruptcy,  insolvency,  moratorium,  and other laws of
            general application affecting the enforcement of creditors' rights.

      b.    Securities   Not   Registered.   The   Purchaser   understands   and
            acknowledges  that the  offering of the Notes,  the Warrants and the
            Conversion  Securities  pursuant  to  this  Agreement  will  not  be
            registered  under the Securities Act or qualified  under  applicable
            blue  sky  laws  on the  grounds  that  the  offering  and  sale  of
            securities   contemplated   by  this   Agreement   are  exempt  from
            registration under the Securities Act and exempt from qualifications
            available  under  applicable  blue sky laws,  and that the Company's
            reliance upon such  exemptions is  predicated  upon the  Purchaser's
            representations   set  forth  in  this   Agreement.   The  Purchaser
            acknowledges  and  understands  that the Note,  the  Warrant and the
            Conversion  Securities  must be held for at least  12  months  after
            Closing and thereafter indefinitely unless they are registered under
            the Securities Act and qualified  under  applicable blue sky laws or
            an  exemption  from  such  registration  and such  qualification  is
            available.

      c.    No Transfer.  Purchaser  covenants that in no event will it transfer
            the Note, the Warrant or the Conversion Securities other than (i) in
            conjunction  with  an  effective   registration  statement  for  the
            Securities  under the  Securities  Act or pursuant  to an  exemption
            therefrom,  or in  compliance  with Rule 144  promulgated  under the
            Securities  Act,  or  (ii) to a  partner,  former  partner,  limited
            partner,   member,  former  member,   stockholder  or  other  entity
            affiliated  with  Purchaser or, in the case of a Purchaser who is an
            individual, to a spouse, lineal descendant or ancestor, or any trust
            for any of the  foregoing,  by transfer by gift,  will or  intestate
            succession;  provided  that  in  each  of the  foregoing  cases  the
            transferee  agrees in  writing  to be  subject  to the terms of this
            Agreement to the same extent as if the transferee  were the original
            Purchaser hereunder.

      d.    Knowledge  and  Experience.  Purchaser  (i) has such  knowledge  and
            experience  in financial  and  business  matters as to be capable of
            evaluating   the  merits  and  risks  of   Purchaser's   prospective
            investment in the Note, the Warrant and the  Conversion  Securities;
            (ii) has the  ability  to bear  the  economic  risks of  Purchaser's
            prospective investment;  (iii) has had access to such information as
            Purchaser  has  considered  necessary  to  make a  determination  to
            purchase  the  Note,  the  Warrant  and  the  Conversion  Securities
            together with such additional  information as is necessary to verify
            the  accuracy  of the  information  supplied;  and (iv) has not been
            offered the Note,  the Warrant or the  Conversion  Securities by any
            form  of  advertisement,  article,  notice  or  other  communication
            published in any newspaper,  magazine, or similar media or broadcast
            over  television or radio, or any seminar or meeting whose attendees
            have been invited by any such media.

      e.    Accredited Investor.  Purchaser is an "accredited  investor" as that
            term is defined in Rule 501(a) under the Securities Act.

      f.    Legends.  Each certificate  representing the Notes, the Warrants and
            the  Conversion  Securities  may  be  endorsed  with  the  following
            legends:

            i.    THE SECURITIES  REPRESENTED BY THIS  CERTIFICATE HAVE NOT BEEN
                  REGISTERED  UNDER THE  SECURITIES ACT OF 1933, AS AMENDED (THE
                  "ACT") AND ARE "RESTRICTED  SECURITIES" AS DEFINED IN RULE 144
                  PROMULGATED UNDER THE ACT. THE SECURITIES MAY NOT BE SOLD OR

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<PAGE>

                  OFFERED  FOR  SALE  OR  OTHERWISE  DISTRIBUTED  EXCEPT  (i) IN
                  CONJUNCTION WITH AN EFFECTIVE  REGISTRATION  STATEMENT FOR THE
                  SHARES UNDER THE ACT OR (ii) IN  COMPLIANCE  WITH RULE 144, OR
                  (iii)   PURSUANT   TO  AN  OPINION  OF   COUNSEL,   THAT  SUCH
                  REGISTRATION  OR  COMPLIANCE  IS NOT REQUIRED AS TO SAID SALE,
                  OFFER OR DISTRIBUTION.

            ii.   Other Legends.  Any other legends required by applicable state
                  blue sky laws. The Company need not register a transfer of any
                  legended Note, Warrant or Conversion Securities,  and may also
                  instruct  its  transfer  agent not to register the transfer of
                  the  Notes,  Warrants  or  Conversion  Securities,  unless the
                  conditions  specified  in each of the  foregoing  legends  are
                  satisfied.

      g.    Removal of Legend and Transfer Restrictions.  Any legend endorsed on
            a  certificate  pursuant to  subsection  3(f) and the stop  transfer
            instructions  with respect to such legend shall be removed,  and the
            Company shall issue a certificate  without such legend to the holder
            of such Note, Warrant or Conversion Securities if such Note, Warrant
            or Conversion Securities are registered under the Securities Act and
            a  prospectus   meeting  the  requirements  of  Section  10  of  the
            Securities  Act  is  available  or  if  such  holder  satisfies  the
            requirements of Rule 144(k).

4. Miscellaneous.

      a.    Waivers and  Amendments.  Any provision of this Agreement other than
            the principal  amount of the Notes and the number of shares  subject
            to the Warrants may be amended,  waived or modified upon the written
            consent of the  Company and the  Purchasers  providing a majority of
            the aggregate principal amounts provided pursuant to this Agreement.

      b.    Governing Law. This  Agreement  shall be governed in all respects by
            the  laws of the  State  of  Delaware.  c.  Entire  Agreement.  This
            Agreement together with the Notes and Warrants  constitutes the full
            and entire  understanding  and  agreement  between the parties  with
            regard to the subjects hereof and thereof.

      d.    Notices.  Any  notice,  request or other  communication  required or
            permitted hereunder shall be in writing and shall be duly given upon
            receipt if personally delivered or mailed by registered or certified
            mail,  postage  prepaid,  or  by  recognized  overnight  courier  or
            personal delivery,  addressed (i) if to a Purchaser,  at the address
            or facsimile  number of such  Purchaser set forth below such party's
            name on  Exhibit  A, or at such  other  address  or  number  as such
            Purchaser shall have furnished to the Company in writing, or (ii) if
            to Company,  at 21351 Ridgetop Circle,  Suite 300, Dulles, VA 20166,
            Attention:  Chief  Financial  Officer  or at such  other  address as
            Company shall furnish to the Purchaser in writing.

      e.    Validity.  If any  provision  of this  Agreement,  the  Notes or the
            Warrants  shall be judicially  determined to be invalid,  illegal or
            unenforceable,  the  validity,  legality and  enforceability  of the
            remaining  provisions  shall not in any way be  affected or impaired
            thereby.

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<PAGE>

      f.    Counterparts.  This  Agreement  may be  executed  in any  number  of
            counterparts,  each of which shall be an original,  but all of which
            together shall be deemed to constitute one instrument.

          THE REMAINDER OF THIS PAGE HAS BEEN LEFT INTENTIONALLY BLANK.

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<PAGE>

      IN WITNESS  WHEREOF,  the parties  have caused this  Agreement  to be duly
executed and  delivered by their proper and duly  authorized  officers as of the
date and year first written above.

                           COMPANY:  GUARDIAN TECHNOLOGIES INTERNATIONAL, INC.
                                            a Delaware corporation

                           By:    /s/ Michael W. Trudnak
                           Name:  Michael W. Trudnak
                           Title: Chairman & Chief Executive Officer

PURCHASER:

By:
     ------------------------------------------
Printed Name:

Address:  ------------------------------------

          ------------------------------------

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                                                     EXHIBIT A

----------------------------------------------------------------------------
                             SCHEDULE OF PURCHASERS
----------------------------------------------------------------------------
BW-1                Bret Williams                              $100,000.00
----------------------------------------------------------------------------

BW-2                Edward D. Tschiggfrie                      $100,000.00
----------------------------------------------------------------------------

BW-3                Alan R. Stamper                            $ 50,000.00
----------------------------------------------------------------------------

BW-4                Charles T. Bell                            $100,000.00
----------------------------------------------------------------------------

BW-5                Scott Porter                                $50,000.00
----------------------------------------------------------------------------

BW-6                Dan Denardis                               $100,000.00
----------------------------------------------------------------------------

BW-7                Edward D. Tschiggfrie                      $200,000.00
----------------------------------------------------------------------------

                                       8EXHIBIT 10.27

THIS NOTE AND ANY SHARES  ACQUIRED  UPON  CONVERSION  OF THIS NOTE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), AND MAY NOT
BE SOLD,  TRANSFERRED,  ASSIGNED OR  HYPOTHECATED  UNLESS  THERE IS AN EFFECTIVE
REGISTRATION  STATEMENT  UNDER SUCH ACT COVERING THIS NOTE,  THE SALE IS MADE IN
ACCORDANCE  WITH RULE 144 UNDER THE ACT, OR THE  COMPANY  RECEIVES AN OPINION OF
COUNSEL  FOR THE HOLDER OF THIS NOTE  REASONABLY  SATISFACTORY  TO THE  COMPANY,
STATING THAT SUCH SALE, TRANSFER, ASSIGNMENT OR HYPOTHECATION IS EXEMPT FROM THE
REGISTRATION AND PROSPECTUS DELIVERY REQUIREMENTS OF SUCH ACT.

                    GUARDIAN TECHNOLOGIES INTERNATIONAL, INC.

                           CONVERTIBLE PROMISSORY NOTE

Note Amount:  $100,000                                        December 11, 2003

      Guardian  Technologies  International,  Inc., a Delaware  corporation (the
"Company"),  for value  received,  hereby  promises  to pay to  Charles  T. Bell
("Holder"),  the principal sum of One Hundred Thousand  Dollars  ($100,000) with
interest as provided below. The Company agrees that proceeds under this Note may
only be used for the expressed purpose as defined in "Allowed Use of Proceeds."

1. Payment.

      a.    Payment.  Subject to the provisions of Section 3 hereof  relating to
            the conversion of this Note,  principal and accrued  interest hereof
            shall be  payable  sixty  (60)  days from the date of this Note (the
            "Maturity Date"). Payments hereunder shall be made by the Company to
            the Holder,  at the address as provided to the Company by the Holder
            in  writing,  in  lawful  money of the  United  States  of  America.
            Interest shall accrue with respect to the unpaid principal amount of
            the loan from the date of this Note  until  the  Maturity  Date at a
            flat rate of ten  percent  (10%) or  $10,000.  Interest at a rate of
            eighteen (18%) percent per annum,  computed on a 365 day year,  will
            be accrued to the outstanding  principal and interest,  beginning on
            the sixty-first  (61st) day and until such time as the principal and
            interest have been repaid or converted per Section 3(b).

      b.    Prepayment. The Company shall have the right at any time and without
            penalty to prepay,  in whole or in part,  the principal  outstanding
            and/or the interest accrued hereunder.

2. Certain Definitions.

      a.    "Allowed Use of Proceeds"  shall mean solely for the  acquisition of
            the MCubiX source code from Diagnos, Inc.

      b.    "Bridge Notes" shall mean the series of notes, of which this Note is
            a part,  dated  on or  about  the date  hereof,  each of  which  are
            identical,  other  than the date of the  Note  and  identity  of the
            Holder.

<PAGE>

      c.    "Financing"  shall mean the first  closing of the  proposed  Private
            Placement   offered  through  Berthel  Fisher  &  Company  Financial
            Services.

      d.    "Financing Securities" shall mean the shares of equity securities of
            the Company sold in the Financing.  e. "Obligations"  shall mean all
            outstanding principal and accrued interest due hereunder.

3. Conversion.

      a.    Conversion Upon Financing.  This Note shall convert, at the Holder's
            option,  into  the  Financing  Securities  upon the  closing  of the
            Financing. The Holder may elect to convert 100% of the principal and
            interest due, or any part thereof.  The Holder is hereby granted the
            right to convert  this note into the  Financing  on a last dollar in
            basis.  The Holder is  guaranteed  a  participatory  position in the
            Financing.

      b.    Conversion  Upon  Available  Funds in  Escrow.  To the  extent  that
            sufficient  funds to repay the  outstanding  principal  and  accrued
            interest have been deposited in escrow as part of the Financing, but
            have  not  closed  by the  Maturity  Date,  the  Holder  shall  earn
            additional interest on the outstanding principal and interest at the
            interest  rate  described in Section 1(a) above.  In addition to the
            interest on the Note,  the Holder  shall be entitled to receive four
            thousand (4,000) stock purchase  warrants for every thirty (30) days
            the Note is outstanding beyond the Maturity Date, granting the right
            to purchase one share of Common Stock for each warrant issued,  at a
            price of $2.50 per share.  The stock purchase  warrants shall expire
            eighteen months after the issue date of the warrants. Closing of the
            funds in escrow must occur  within the thirty (30) days  immediately
            following the Maturity Date of the Note.

      c.    Conversion  Absent  Financing within sixty (60) days of execution of
            this Note.  If no Financing  shall have  occurred  within sixty (60)
            days of the  execution  of this  Note,  then  the  Holder  shall  be
            entitled to forty thousand  (40,000)  stock  warrants  entitling the
            Holder to purchase  one share of Common  Stock for each warrant at a
            price of $2.50 per share.  The warrants  shall have an eighteen (18)
            month expiration. The Holder may elect to convert all or part of the
            amount owing under this Note.  The stock  purchase  warrants will be
            allocated  on a  pro  rata  basis  to  the  shares  converted  (i.e.
            conversion of1/2of the outstanding principal interest will result in
            20,000 stock purchase warrants [40,000/2].

      d.    Conversion  Price  Upon  Financing.  In the  event  of a  conversion
            pursuant  to  subsection  3(a)  hereof,  the number of shares of the
            Financing Securities to be issued upon conversion of the Obligations
            shall equal the aggregate  amount of the Obligations  divided by the
            price per share of the Financing  Securities  issued and sold in the
            Financing plus any other considerations contained in the Financing.

      e.    Conversion  Price  Absent  Financing.  In the event of a  conversion
            pursuant to subsections 3(b) or 3(c) hereof, the number of shares of
            the Common  Stock to be issued  upon  conversion  of this Note shall
            equal the aggregate amount of the Obligations divided by $1.50 .

      f.    Notice Regarding Financing. Written notice shall be delivered to the
            Holder of this Note at the  address so  indicated  on the  execution
            page of the Note and Warrant Purchase Agreement notifying the Holder
            of the terms and conditions of the Financing, the applicable

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<PAGE>

            conversion  price,  the date on which a  conversion  may  occur  and
            calling  upon such Holder to  surrender  the Note to the Company for
            cancellation and conversion/repayment in the manner and at the place
            designated.

      g.    Mechanics  and  Effect  of  Conversion.   No  fractional  shares  of
            Financing Securities or Common Stock shall be issued upon conversion
            of this Note.  Notwithstanding  any other  provision of this Note or
            the Note and  Common  Stock  Warrant  Purchase  Agreement,  upon the
            conversion  of the  Obligations  under  this  Note,  in  lieu of the
            Company  issuing any  fractional  shares to the Holder,  the Company
            shall pay to the Holder in cash the amount of the  Obligations  that
            is not so converted.  Upon conversion of this Note pursuant  hereto,
            the  Holder  shall  surrender  this  Note,  duly  endorsed,  at  the
            principal  office of the Company and shall execute such documents as
            are  reasonably  required to be executed  by all  purchasers  of the
            Financing  Securities.  The Company  shall,  as soon as  practicable
            thereafter,  issue and  deliver  to such  Holder  at such  principal
            office a certificate or certificates for the number of shares of the
            Financing  Securities  or Common  Stock to which the Holder shall be
            entitled upon such conversion  (bearing such legends as are required
            by applicable  state and federal  securities  laws in the opinion of
            counsel to the  Company),  together  with any other  securities  and
            property to which the Holder is entitled upon such conversion  under
            the terms of this Note.  Upon full  conversion of this Note pursuant
            to the terms hereof,  the Company shall be forever released from all
            its obligations and liabilities  under this Note. Upon conversion of
            this Note into  Financing  Securities  or Common  Stock,  the Holder
            shall be  entitled  to all rights  and  privileges  afforded  by the
            Company to other  holders  of such  Financing  Securities  or Common
            Stock.

4.    Events of Default. The occurrence of any of the following shall constitute
      an "Event  of  Default"  under  this  Note and the Note and  Common  Stock
      Warrant   Purchase   Agreement  of  even  date  herewith  (the   "Purchase
      Agreement"):

      a.    Failure  to Pay.  The  Company  shall  fail to pay (i)  when due any
            principal  payment on the due date hereunder or (ii) any interest or
            other payment  required under the terms of this Note on the date due
            and such payment  shall not have been made within  fifteen (15) days
            of Company's  receipt of Holder's  written  notice to the Company of
            such failure to pay; or

      b.    Voluntary  Bankruptcy or Insolvency  Proceedings.  The Company shall
            (i) apply for or consent to the appointment of a receiver,  trustee,
            liquidate or custodian of itself or of all or a substantial  part of
            its property,  (ii) make a general assignment for the benefit of its
            or any of its creditors, (iii) be dissolved or liquidated in full or
            in part, (iv) commence a voluntary case or other proceeding  seeking
            liquidation,  reorganization  or other relief with respect to itself
            or its debts under any  bankruptcy,  insolvency or other similar law
            now or  hereafter  in effect or consent to any such relief or to the
            appointment of or taking  possession of its property by any official
            in an involuntary case or other proceeding  commenced against it, or
            (v)  take  any  action  for  the  purpose  of  effecting  any of the
            foregoing; or

      c.    Involuntary  Bankruptcy or Insolvency  Proceedings.  Proceedings for
            the appointment of a receiver,  trustee,  liquidator or custodian of
            the Company or of all or a substantial part of the property thereof,
            or an involuntary  case or other  proceedings  seeking  liquidation,
            reorganization or other relief with respect to the Company or the

                                       3
<PAGE>

            debts thereof under any bankruptcy,  insolvency or other similar law
            or hereafter  in effect  shall be commenced  and an order for relief
            entered or such  proceeding  shall not be  dismissed  or  discharged
            within thirty (30) days of commencement.

5.    Rights of Holder Upon  Default.  Upon the  occurrence  or existence of any
      Event of Default (other than an Event of Default referred to in Paragraphs
      4(c) and at any time  thereafter  during the  continuance of such Event of
      Default, Holder may declare all outstanding Obligations payable by Company
      hereunder to be immediately due and payable without  presentment,  demand,
      protest or any other notice of any kind, all of which are hereby expressly
      waived,  anything  contained  herein or in the  Purchase  Agreement to the
      contrary notwithstanding. Upon the occurrence or existence of any Event of
      Default described in Paragraphs 4(c),  immediately and without notice, all
      outstanding  Obligations  payable by Company hereunder shall automatically
      become immediately due and payable,  without presentment,  demand, protest
      or any other notice of any kind, all of which are hereby expressly waived,
      anything  contained  herein or in the  Purchase  Agreement to the contrary
      notwithstanding.   In  addition  to  the  foregoing  remedies,   upon  the
      occurrence  or existence of any Event of Default,  Holder may exercise any
      other right,  power or remedy  granted to it by the Purchase  Agreement or
      otherwise permitted to it by law, either by suit in equity or by action at
      law, or both.

6.    Miscellaneous.

      a.    Amendment  Provisions.  Any  provision  of this Note  other than the
            principal  amount and identity of the Holder may be amended,  waived
            or modified upon the written  consent of the Company and the parties
            providing  at least a majority of the  aggregate  principal  amounts
            provided  pursuant  to the Bridge  Notes.  b.  Severability.  If any
            provision  of this Note is  determined  to be  invalid,  illegal  or
            unenforceable,  in whole  or in part,  the  validity,  legality  and
            enforceability  of any of the  remaining  provisions  or portions of
            this Note shall not in any way be affected  or impaired  thereby and
            this Note shall  nevertheless be binding between the Company and the
            Holder.

      c.    Governing  Law.  This Note shall be  governed  by and  construed  in
            accordance with the laws of the State of Delaware.

      d.    Binding Effect.  This Note shall be binding upon, and shall inure to
            the  benefit  of, the  Company  and the Holder and their  respective
            successors and assigns; provided,  however, that the Company may not
            assign its obligations  hereunder without the Holder's prior written
            consent.

      e.    Enforcement Costs. The Company agrees to pay all costs and expenses,
            including,  without  limitation,   reasonable  attorneys'  fees  and
            expenses,  the  Holder  expends  or  incurs in  connection  with the
            enforcement  of this Note, the collection of any sums due hereunder,
            any actions for declaratory  relief in any way related to this Note,
            or the  protection  or  preservation  of any  rights  of the  Holder
            hereunder.

      f.    Notices.  Any  notice,  request or other  communication  required or
            permitted hereunder shall be in writing and shall be duly given upon
            receipt if personally delivered or mailed by registered or certified
            mail,  postage  prepaid,  or  by  recognized  overnight  courier  or
            personal  delivery,  addressed  (i) if to Holder,  at the address or
            facsimile number of such Holder as set forth below such party's name
            on Exhibit A to the Purchase Agreement,  or at such other address or
            number as such Holder shall have furnished to the Company in

                                       4
<PAGE>

            writing, or (ii) if to Company, at 21351 Ridgetop Circle, Suite 300,
            Dulles,  Virginia 20166,  Attention:  Chief Financial  Officer or at
            such other  address as Company  shall  furnish to the  Purchaser  in
            writing.

      g.    Payment.  Payment  shall  be made in  lawful  tender  of the  United
            States.

      h.    Transfer of Note or Securities  Issuable on Conversion Hereof.  This
            Note or the  securities  issuable  on  conversion  hereof may not be
            transferred in violation of any restrictive  legend set forth hereon
            or thereon.  Each new Note issued  upon  transfer of this Note,  and
            each  security  issuable  on  conversion  hereof,   shall  bear  the
            restrictive legend set forth below, unless in the opinion of counsel
            for  Company  such  legend  is  not  required  in  order  to  ensure
            compliance with the Act:

      "THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER
      THE SECURITIES  ACT OF 1933, AS AMENDED,  AND MAY NOT BE SOLD OR OTHERWISE
      TRANSFERRED EXCEPT PURSUANT TO AN EFFECTIVE  REGISTRATION  STATEMENT FILED
      UNDER SUCH ACT OR PURSUANT TO AN EXEMPTION  FROM  REGISTRATION  UNDER SUCH
      ACT."

The  Company  may issue stop  transfer  instructions  to its  transfer  agent in
connection with such restrictions.  Subject to the foregoing,  transfers of this
Note shall be registered upon registration  books maintained for such purpose by
or on behalf of the  Company as  provided in the  Purchase  Agreement.  Prior to
presentation of this Note for registration of transfer,  the Company shall treat
the  registered  holder  hereof  as the  owner  and  holder of this Note for the
purpose of receiving all payments of principal  and interest  hereon and for all
other purposes whatsoever, whether or not this Note shall be overdue and Company
shall not be affected by notice to the contrary.

      i.    Headings.  Section  headings  used in this  Note have been set forth
            herein for  convenience  of reference  only.  Unless the contrary is
            compelled  by the  context,  everything  contained  in each  section
            hereof applies equally to this entire Note.

      IN WITNESS  WHEREOF,  the  Company has caused this Note to be issued as of
the date first written above.

                                   Guardian Technologies International, Inc.

                                   By:  /s/ Michael W. Trudnak
                                   Name: Michael W. Trudnak
                                   Title: Chairman and Chief Executive Officer

                                       5

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