<PAGE>   1
                                                                   Exhibit 10.31

                          COMMERCIAL SECURITY AGREEMENT

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<S>              <C>             <C>          <C>             <C>      <C>            <C>         <C>         <C>
  PRINCIPAL        LOAN DATE      MATURITY      LOAN NO.       CALL     COLLATERAL     ACCOUNT     OFFICER     INITIALS
$4,000,000.00     07-07-2000                   9100006714       4A         302                       178
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  References in the shaded area are for Lender's use only and do not limit the applicability of this document to any
      particular loan or item. Any item above containing "***" has been omitted due to text length limitations.
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<S>                                                               <C>
GRANTOR:  DYNACS INC, A DELAWARE CORPORATION, AUTHORIZED TO         LENDER: FIRST NATIONAL BANK OF FLORIDA
          DO BUSINESS IN FLORIDA AS DYNACS WORLDWIDE, INC                   MAIN OFFICE
          35111 U S HIGHWAY 19 N #300                                       1150 CLEVELAND STREET
          PALM HARBOR, FL 34684                                             CLEARWATER, FL 33755
                                                                            (727) 441-3447

=========================================================================================================================
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THIS COMMERCIAL SECURITY AGREEMENT dated July 7, 2000, is made and executed
between Dynacs Inc, a Delaware Corporation, authorized to do business in Florida
as Dynacs Worldwide, Inc ("Grantor") and First National Bank of Florida
("Lender").

GRANT OF SECURITY INTEREST. For valuable consideration, Grantor grants to Lender
a security interest in the Collateral to secure the Indebtedness and agrees that
Lender shall have the rights stated in this agreement with respect to the
Collateral, in addition to all other rights which Lender may have by law.

COLLATERAL DESCRIPTION. The word "collateral" as used in this agreement means
the following described property, whether now owned or hereafter acquired,
whether now existing or hereafter arising, and wherever located, in which
Grantor is giving to Lender a security interest for the payment of the
Indebtedness and performance of all other obligations under the Note and this
Agreement:

     ALL INVENTORY, CHATTEL PAPER, ACCOUNTS, EQUIPMENT AND GENERAL INTANGIBLES

     GOVERNMENT CONTRACT #NAS-88008 UNDER WHICH THE BORROWER IS A RECIPIENT OF
     MONETARY REMUNERATION

     GOVERNMENT CONTRACT #NAS9-194303 UNDER WHICH THE BORROWER IS A RECIPIENT OF
     MONETARY REMUNERATION

     GOVERNMENT CONTRACT #F29601-97-D-0034 UNDER WHICH THE BORROWER IS A
     RECIPIENT OF MONETARY REMUNERATION

     GOVERNMENT CONTRACT #F29601-96-D-0034 UNDER WHICH THE BORROWER IS A
     RECIPIENT OF MONETARY REMUNERATION

     GOVERNMENT CONTRACT #F29601-98-C-0208 UNDER WHICH THE BORROWER IS A
     RECIPIENT OF MONETARY REMUNERATION

In addition, the word "Collateral" also includes all the following, whether now
owned or hereafter acquired, whether now existing or hereafter arising, and
wherever located:

     (A) All accessions, attachments, accessories, tools, parts, supplies,
     replacements and additions to any of the collateral described herein,
     whether added now or later.

     (B) All products and produce of any of the property described in this
     Collateral section.

     (C) All accounts, general intangibles, instruments, rents, monies,
     payments, and all other rights, arising out of a sale, lease, or other
     disposition of any of the property described in this Collateral section.

     (D) All proceeds (including insurance proceeds) from the sale, destruction,
     loss, or other disposition of any of the property described in this
     Collateral section, and sums due from a third party who has damaged or
     destroyed the Collateral or from that party's insurer, whether due to
     judgment, settlement or other process.

     (E) All records and data relating to any of the property described in this
     Collateral section, whether in the form of a writing, photograph,
     microfilm, microfiche, or electronic media, together with all of Grantor's
     right, title, and interest in and to all computer software required to
     utilize, create, maintain, and process any such records or data on
     electronic media.

Despite any other provision of this Agreement, Lender is not granted, and will
not have, a nonpurchase money security interest in household goods, to the
extent such a security interest would be prohibited by applicable law. In
addition, if because of the type of any Property, Lender is required to give a
notice of the right to cancel under Truth in Lending for the Indebtedness, then
Lender will not have a security interest in such Property unless and until such
a notice is given.

RIGHT OF SETOFF. Grantor grants to Lender a contractual security interest in all
Grantor's accounts with Lender (whether checking, savings, or some other
account). This includes all accounts Grantor holds jointly with someone else and
all accounts Grantor may open in the future. However, this does not include any
IRA or Keogh accounts, or any trust accounts for which the grant of a security
interest would be prohibited by law. Grantor authorizes Lender, to the extent
permitted by applicable law, to charge or setoff all sums owing on the
Indebtedness against any and all such accounts.

GRANTOR'S REPRESENTATIONS AND WARRANTIES WITH RESPECT TO THE COLLATERAL. With
respect to the Collateral, Grantor represents and warrants to Lender that:

     PERFECTION OF SECURITY INTEREST. Grantor agrees to execute financing
     statements and to take whatever other actions are requested by Lender to
     perfect and continue Lender's security interest in the Collateral. Upon
     request of Lender, Grantor will deliver to Lender any and all of the
     documents evidencing or constituting the Collateral, and Grantor will note
     Lender's interest upon any and all chattel paper if not delivered to Lender
     for possession by Lender. THIS IS A CONTINUING SECURITY AGREEMENT AND WILL
     CONTINUE IN EFFECT EVEN THOUGH ALL OR ANY PART OF THE INDEBTEDNESS IS PAID
     IN FULL AND EVEN THOUGH FOR A PERIOD OF TIME GRANTOR MAY NOT BE INDEBTED TO
     LENDER.

     NOTICES TO LENDER. Grantor will notify Lender in writing at Lender's
     address shown above (or such other addresses as Lender may designate from
     time to time) prior to any (1) change in Grantor's name, (2) change in
     Grantor's assumed business name(s), (3) change in the management of
     Grantor, (4) change in the authorized signer(s), (5) change in Grantor's
     principal office address, (6) conversion of Grantor to a new or different
     type of business entity, or (7) change in any other aspect of Grantor that
     directly or indirectly relates to any agreements between Grantor and
     Lender. No change in Grantor's name will take effect until after Lender has
     been notified.

     NO VIOLATION. The execution and delivery of this Agreement will not violate
     any law or agreement governing Grantor or to which Grantor is a party, and
     its certificate or articles of incorporation and bylaws do not prohibit any
     term or condition of this Agreement.


     ENFORCEABILITY OF COLLATERAL. To the extent the Collateral consists of
     accounts, chattel paper, or general intangibles, as defined by the Uniform
     Commercial Code, the Collateral is enforceable in accordance with its
     terms, is genuine, and fully complies with all applicable laws and
     regulations concerning form, content and manner of preparation and
     execution, and all persons appearing to be obligated on the Collateral have
     authority and capacity to contract and are in fact obligated as they appear
     to be on the Collateral. At the time any Account becomes subject to a
     security interest in favor of Lender, the Account shall be a good and valid
     account representing an undisputed, bona fide indebtedness incurred by the
     account debtor, for merchandise held subject to delivery instructions or
     previously shipped or delivered pursuant to a contract of sale, or for
     services previously performed by Grantor with or for the account debtor. So
     long as this Agreement remains in effect, Grantor shall not, without
     Lender's prior written consent, compromise, settle, adjust, or extend
     payment under or with regard to any such Accounts. There shall be no
     setoffs or counterclaims against any of the Collateral, and no agreement
     shall have been made under which any deductions or discounts may be claimed
     concerning the Collateral except those disclosed to Lender in writing.


     LOCATION OF THE COLLATERAL. Except in the ordinary course of Grantor's
     business, Grantor agrees to keep the Collateral (or to the extent the
     Collateral consists of intangible property such as accounts or general
     intangibles, the records concerning the Collateral) at Grantor's address
     shown above or at such other locations as are acceptable to Lender. Upon
     Lender's request, Grantor will deliver to Lender in form satisfactory to
     Lender a schedule of real properties and Collateral locations relating to
     Grantor's operations, including without limitation the following: (1) all
     real property Grantor owns or is purchasing, (2) all real property Grantor
     is renting or leasing; (3) all storage facilities Grantor owns, rents,
     leases, or uses; and (4) all other properties where Collateral is or may be
     located.

     REMOVAL OF THE COLLATERAL. Except in the ordinary course of Grantor's
     business, including the sales of inventory, Grantor shall not remove the
     Collateral from its existing location without Lender's prior written
     consent. Grantor shall, whenever requested, advise Lender of the exact
     location of the Collateral.

     TRANSACTIONS INVOLVING COLLATERAL. Except for inventory sold or accounts
     collected in the ordinary course of Grantor's business, Grantor shall not
     sell, offer to sell, or otherwise transfer or dispose of the Collateral.
     While Grantor is not in default under this Agreement, Grantor may sell
     inventory, but only in the ordinary course of its business and only to
     buyers who qualify as a buyer in the ordinary course of business. A sale in
     the ordinary course of Grantor's business does not include a transfer in
     partial or total satisfaction of a debt or any bulk sale. Grantor shall not
     pledge, mortgage, encumber or otherwise permit the Collateral to be subject
     to any lien, security interest, encumbrance, or charge, other than the
     security interest provided for in this Agreement, without the prior written
     consent of Lender. This includes security interests even if junior in right
     to the security interests granted under this Agreement. Unless waived by
     Lender, all proceeds from any disposition of the Collateral (for whatever
     reason) shall be held in trust for Lender and shall not be commingled with
     any other funds; provided however, this requirement shall not constitute
     consent by Lender to any sale or other disposition. Upon receipt, Grantor
     shall immediately deliver any such proceeds to Lender.


<PAGE>   2
                          COMMERCIAL SECURITY AGREEMENT                   PAGE 2
                                   (CONTINUED)

================================================================================

      TITLE. Grantor represents and warrants to Lender that Grantor holds good
      and marketable title to the Collateral, free and clear of all liens and
      encumbrances except for the lien of this Agreement. No financing statement
      covering any of the Collateral is on file in any public office other than
      those which reflect the security interest created by this Agreement or to
      which Lender has specifically consented. Grantor shall defend Lender's
      rights in the Collateral against the claims and demands of all other
      persons.

      REPAIRS AND MAINTENANCE. Grantor agrees to keep and maintain, and to cause
      others to keep and maintain, the Collateral in good order, repair and
      condition at all times while this Agreement remains in effect. Grantor
      further agrees to pay when due all claims for work done on, or services
      rendered or material furnished in connection with the Collateral so that
      no lien or encumbrance may ever attach to or be filed against the
      Collateral.

      INSPECTION OF COLLATERAL. Lender and Lender's designated representatives
      and agents shall have the right at all reasonable times to examine and
      inspect the Collateral wherever located.

      TAXES, ASSESSMENTS AND LIENS. Grantor will pay when due all taxes,
      assessments and liens upon the Collateral, its use or operation, upon this
      Agreement, upon any promissory note or notes evidencing the Indebtedness,
      or upon any of the other Related Documents. Grantor may withhold any such
      payment or may elect to contest any lien if Grantor is in good faith
      conducting an appropriate proceeding to contest the obligation to pay and
      so long as Lender's interest in the Collateral is not jeopardized in
      Lender's sole opinion. If the Collateral is subjected to a lien which is
      not discharged within fifteen (15) days, Grantor shall deposit with Lender
      cash, a sufficient corporate surety bond or other security satisfactory to
      Lender in an amount adequate to provide for the discharge of the lien plus
      any interest, costs, reasonable attorneys' fees or other charges that
      could accrue as a result of foreclosure or sale of the Collateral. In any
      contest Grantor shall defend itself and Lender and shall satisfy any final
      adverse judgment before enforcement against the Collateral. Grantor shall
      name Lender as an additional obligee under any surety bond furnished in
      the contest proceedings. Grantor further agrees to furnish Lender with
      evidence that such taxes, assessments, and governmental and other charges
      have been paid in full and in a timely manner. Grantor may withhold any
      such payment or may elect to contest any lien if Grantor is in good faith
      conducting an appropriate proceeding to contest the obligation to pay and
      so long as Lender's interest in the Collateral is not jeopardized.

      COMPLIANCE WITH GOVERNMENTAL REQUIREMENTS. Grantor shall comply promptly
      with all laws, ordinances, rules and regulations of all governmental
      authorities, now or hereafter in effect, applicable to the ownership,
      production, disposition, or use of the Collateral. Grantor may contest in
      good faith any such law, ordinance or regulation and withhold compliance
      during any proceeding, including appropriate appeals, so long as Lender's
      interest in the Collateral, in Lender's opinion, is not jeopardized.

      HAZARDOUS SUBSTANCES. Grantor represents and warrants that the Collateral
      never has been, and never will be so long as this Agreement remains a lien
      on the Collateral, used in violation of any Environmental Laws or for the
      generation, manufacture, storage, transportation, treatment, disposal,
      release or threatened release of any Hazardous Substance. The
      representations and warranties contained herein are based on Grantor's due
      diligence in investigating the Collateral for Hazardous Substances.
      Grantor hereby (1) releases and waives any future claims against Lender
      for indemnity or contribution in the event Grantor becomes liable for
      cleanup or other costs under any Environmental Laws, and (2) agrees to
      indemnify and hold harmless Lender against any and all claims and losses
      resulting from a breach of this provision of this Agreement. This
      obligation to indemnify shall survive the payment of the Indebtedness and
      the satisfaction of this Agreement.

      MAINTENANCE OF CASUALTY INSURANCE. Grantor shall procure and maintain all
      risks insurance, including without limitation fire, theft and liability
      coverage together with such other insurance as Lender may require with
      respect to the Collateral, in form, amounts, coverages and basis
      reasonably acceptable to Lender and issued by a company or companies
      reasonably acceptable to Lender. Grantor, upon request of Lender, will
      deliver to Lender from time to time the policies or certificates of
      insurance in form satisfactory to Lender, including stipulations that
      coverages will not be cancelled or diminished without at least ten (10)
      days' prior written notice to Lender and not including any disclaimer of
      the insurer's liability for failure to give such a notice. Each insurance
      policy also shall include an endorsement providing that coverage in favor
      of Lender will not be impaired in any way by any act, omission or default
      of Grantor or any other person. In connection with all policies covering
      assets in which Lender holds or is offered a security interest, Grantor
      will provide Lender with such loss payable or other endorsements as Lender
      may require. If Grantor at any time fails to obtain or maintain any
      insurance as required under this Agreement, Lender may (but shall not be
      obligated to) obtain such insurance as Lender deems appropriate, including
      if Lender so chooses "single interest insurance," which will cover only
      Lender's interest in the Collateral.

      APPLICATION OF INSURANCE PROCEEDS. Grantor shall promptly notify Lender of
      any loss or damage to the Collateral. Lender may make proof of loss if
      Grantor fails to do so within fifteen (15) days of the casualty. All
      proceeds of any insurance on the Collateral, including accrued proceeds
      thereon, shall be held by Lender as part of the Collateral. If Lender
      consents to repair or replacement of the damaged or destroyed Collateral,
      Lender shall, upon satisfactory proof of expenditure, pay or reimburse
      Grantor from the proceeds for the reasonable cost of repair or
      restoration. If Lender does not consent to repair or replacement of the
      Collateral, Lender shall retain a sufficient amount of the proceeds to pay
      all of the Indebtedness, and shall pay the balance to Grantor. Any
      proceeds which have not been disbursed within six (6) months after their
      receipt and which Grantor has not committed to the repair or restoration
      of the Collateral shall be used to prepay the Indebtedness.

      INSURANCE RESERVES. Lender may require Grantor to maintain with Lender
      reserves for payment of insurance premiums, which reserves shall be
      created by monthly payments from Grantor of a sum estimated by Lender to
      be sufficient to produce, at least fifteen (15) days before the premium
      due date, amounts at least equal to the insurance premiums to be paid. If
      fifteen (15) days before payment is due, the reserve funds are
      insufficient, Grantor shall upon demand pay any deficiency to Lender. The
      reserve funds shall be held by Lender as a general deposit and shall
      constitute a non-interest-bearing account which Lender may satisfy by
      payment of the insurance premiums required to be paid by Grantor as they
      become due. Lender does not hold the reserve funds in trust for Grantor,
      and Lender is not the agent of Grantor for payment of the insurance
      premiums required to be paid by Grantor. The responsibility for the
      payment of premiums shall remain Grantor's sole responsibility.

      INSURANCE REPORTS. Grantor, upon request of Lender, shall furnish to
      Lender reports on each existing policy of insurance showing such
      information as Lender may reasonably request including the following: (1)
      the name of the insurer; (2) the risks insured; (3) the amount of the
      policy; (4) the property insured; (5) the then current value on the basis
      of which insurance has been obtained and the manner of determining that
      value; and (6) the expiration date of the policy. In addition, Grantor
      shall upon request by Lender (however not more often than annually) have
      an independent appraiser satisfactory to Lender determine, as applicable,
      the cash value or replacement cost of the Collateral.

GRANTOR'S RIGHT TO POSSESSION AND TO COLLECT ACCOUNTS. Until default and except
as otherwise provided below with respect to accounts, Grantor may have
possession of the tangible personal property and beneficial use of all the
Collateral and may use it in any lawful manner not inconsistent with this
Agreement or the Related Documents, provided that Grantor's right to possession
and beneficial use shall not apply to any Collateral where possession of the
Collateral by Lender is required by law to perfect Lender's security interest in
such Collateral. Until otherwise notified by Lender, Grantor may collect any of
the Collateral consisting of accounts. At any time and even though no Default
exists, Lender may exercise its rights to collect the accounts and to notify
account debtors to make payments directly to Lender for application to the
Indebtedness. If Lender at any time has possession of any Collateral, whether
before or after Default, Lender shall be deemed to have exercised reasonable
care in the custody and preservation of the Collateral if Lender takes such
action for that purpose as Grantor shall request or as Lender, in Lender's sole
discretion, shall deem appropriate under the circumstances, but failure to honor
any request by Grantor shall not of itself be deemed to be a failure to exercise
reasonable care. Lender shall not be required to take any steps necessary to
preserve any rights in the Collateral against prior parties, nor to protect,
preserve or maintain any security interest given to secure the Indebtedness.

LENDER'S EXPENDITURES. If any action or proceeding is commenced that would
materially affect Lender's interest in the Collateral or if Grantor fails to
comply with any provision of this Agreement or any Related Documents, including
but not limited to Grantor's failure to discharge or pay when due any amounts
Grantor is required to discharge or pay under this Agreement or any Related
Documents, Lender on Grantor's behalf may (but shall not be obligated to) take
any action that Lender deems appropriate, including but not limited to
discharging or paying all taxes, liens, security interests, encumbrances and
other claims, at any time levied or placed on the Collateral and paying all
costs for insuring, maintaining and preserving the Collateral. All such
expenditures incurred or paid by Lender for such purposes will then bear
interest at the rate charged under the Note from the date incurred or paid by
Lender to the date of repayment by Grantor. All such expenses will become a part
of the Indebtedness and, at Lender's option, will (A) be payable on demand; (B)
be added to the balance of the Note and be apportioned among and be payable with
any installment payments to become due during either (1) the term of any
applicable insurance policy; or (2) the remaining term of the Note; or (C) be
treated as a balloon payment which will be due and payable at the Note's
maturity. The Collateral also will secure payment of these amounts. Such right
shall be in addition to all other rights and remedies to which Lender may be
entitled upon Default.

DEFAULT. Default will occur if payment in full is not made immediately when due.

RIGHTS AND REMEDIES ON DEFAULT. If Default occurs under this Agreement, at any
time thereafter, Lender shall have all the rights of a secured party under the
Florida Uniform Commercial Code. In addition and without limitation, Lender may
exercise any one or more of the following rights and remedies:

     ACCELERATE INDEBTEDNESS. With respect to each obligation constituting the
     Indebtedness as to which Default has occurred, Lender may declare the
     entire unpaid principal balance on and all accrued unpaid interest on such
     obligation or obligations (including, without limitation, the Note)
     immediately due and payable unless notice and an opportunity to cure is
     required by Section 425.105, Wis. Stats., and in that event, all amounts
     due under this Agreement shall become payable if such default is not cured,
     as provided by that statute, within fifteen (15) calendar days after Lender
     has mailed such notice.

     ASSEMBLE COLLATERAL. Lender may require Grantor to deliver to Lender all or
     any portion of the Collateral and any and all certificates of title and
<PAGE>   3
                         COMMERCIAL SECURITY AGREEMENT                 PAGE 3
                                  (CONTINUED)

===============================================================================

      other documents relating to the Collateral.  Lender may require Grantor
      to assemble the Collateral and make it available to Lender at a place to
      be designated by Lender.  Lender also shall have full power to enter upon
      the property of Grantor to take possession of and remove the Collateral.
      If the Collateral contains other goods not covered by this Agreement at
      the time of repossession, Grantor agrees Lender may take such other
      goods, provided that Lender makes reasonable efforts to return them to
      Grantor after repossession.

      SELL THE COLLATERAL.  Lender shall have full power to sell, lease,
      transfer, or otherwise deal with the Collateral or proceeds thereof in
      Lender's own name or that of Grantor.  Lender may sell the Collateral at
      public auction or private sale.  Unless the Collateral threatens to
      decline speedily in value or is of a type customarily sold on a recognized
      market, Lender will give Grantor reasonable notice of the time after which
      any private sale or any other intended disposition of the Collateral is to
      be made.  The requirements of reasonable notice shall be met if such
      notice is given at least fifteen (15) days before the time of the sale or
      disposition.  All expenses relating to the disposition of the Collateral,
      including without limitation the expenses of retaking, holding, insuring,
      preparing for sale and selling the Collateral, shall become a part of the
      indebtedness secured by this Agreement and shall be payable on demand,
      with interest at the Note rate from date of expenditure until repaid.

      APPOINT RECEIVER.  In the event of a suit being instituted to
      foreclose this Agreement, Lender shall be entitled to apply at any time
      pending such foreclosure suit to the court having jurisdiction thereof
      for the appointment of a receiver of any or all of the Collateral, and of
      all rents, incomes, profits, issues and revenues thereof, from whatsoever
      source.  The parties agree that the court shall forthwith appoint such
      receiver with the usual powers and duties of receivers in like cases.
      Such appointment shall be made by the court as a matter of strict right
      to Lender and without notice to Grantor, and without reference to the
      adequacy or inadequacy of the value of the Collateral, or to Grantor's
      solvency or any other party defendant to such suit.  Grantor hereby
      specifically waives the right to object to the appointment of a receiver
      and agrees that such appointment shall be made as an admitted equity and
      as a matter of absolute right to Lender, and consents to the appointment
      of any officer or employee of Lender as receiver.  Lender shall have the
      right to have a receiver appointed to take possession of all or any part
      of the Collateral, with the power to protect and preserve the Collateral,
      to operate the Collateral preceding foreclosure or sale, and to collect
      the Rents from the Collateral and apply the proceeds, over and above the
      cost of the receivership, against the indebtedness.  The receiver may
      serve without bond if permitted by law.  Lender's right to the
      appointment of a receiver shall exist whether or not the apparent value
      of the Collateral exceeds the indebtedness by a substantial amount.
      Employment by Lender shall not disqualify a person from serving as a
      receiver.

      COLLECT REVENUES, APPLY ACCOUNTS.  Lender, either itself or through a
      receiver, may collect the payments, rents, income, and revenues from the
      Collateral. Lender may at any time in Lender's discretion transfer any
      Collateral into Lender's own name or that of Lender's nominee and receive
      the payments, rents, income, and revenue therefrom and hold the same as
      security for the indebtedness or apply it to payment of the indebtedness
      in such order of preference as Lender may determine.  Insofar as the
      Collateral consists of accounts, general intangibles, insurance policies,
      instruments, chattel paper, choses in action, or similar property, Lender
      may demand, collect, receipt for, settle, compromise, adjust, sue for,
      foreclose, or realize on the Collateral as Lender may determine,
      whether or not indebtedness or Collateral is then due.  For these
      purposes, Lender may, on behalf of and in the name of Grantor, receive,
      open and dispose of mail addressed to Grantor; change any address to
      which mail and payments are to be sent; and endorse notes, checks,
      drafts, money orders, documents of title, instruments and items
      pertaining to payment, shipment, or storage of any Collateral.  To
      facilitate collection, Lender may notify account debtors and obligors on
      any Collateral to make payments directly to Lender.

      OBTAIN DEFICIENCY.  If Lender chooses to sell any or all of the
      Collateral, Lender may obtain a judgment against Grantor for any
      deficiency remaining on the indebtedness due to Lender after application
      of all amounts received from the exercise of the rights provided in this
      Agreement.  Grantor shall be liable for a deficiency even if the
      transaction described in this subsection is a sale of accounts or chattel
      paper.


      OTHER RIGHTS AND REMEDIES.  Lender shall have all the rights and
      remedies of a secured creditor under the provisions of the Uniform
      Commercial Code, as may be amended from time to time.  In addition,
      Lender shall have and may exercise any or all other rights and remedies
      it may have available at law, in equity, or otherwise.


      ELECTION OF REMEDIES.  Except as may be prohibited by applicable law, all
      of Lender's rights and remedies, whether evidenced by this Agreement, the
      Related Documents, or by any other writing, shall be cumulative and may be
      exercised singularly or concurrently.  Election by Lender to pursue any
      remedy will not bar any other remedy, and an election to make expenditures
      or to take action to perform an obligation of Grantor under this
      Agreement, after Grantor's failure to perform, shall not affect Lender's
      right to declare a default and exercise its remedies.

ADDITIONAL COLLATERAL DESCRIPTION.  Collateral Specifically excludes assets
encumbered by Granite Financial Inc under a UCC Filing #99000226946.

MISCELLANEOUS PROVISIONS.  The following miscellaneous provisions are a part of
this Agreement:

       AMENDMENTS.  This Agreement, together with any Related Documents,
       constitutes the entire understanding and agreement of the parties as to
       the matters set forth in this Agreement.  No alteration of or amendment
       to this Agreement shall be effective unless given in writing and signed
       by the party or parties sought to be charged or bound by the alteration
       or amendment.

       ATTORNEYS' FEES; EXPENSES.  Grantor agrees to pay upon demand all of
       Lender's costs and expenses, including Lender's reasonable attorneys'
       fees and Lender's legal expenses, incurred in connection with the
       enforcement of this Agreement.  Costs and expenses include Lender's
       reasonable attorneys' fees and legal expenses whether or not there is a
       lawsuit, including reasonable attorneys' fees and legal expenses for
       bankruptcy proceedings (including efforts to modify or vacate any
       automatic stay or injunction), appeals, and any anticipated
       post-judgment collection services.  Grantor also shall pay all court
       costs and such additional fees as may be directed by the court.

       CAPTION HEADINGS.  Caption headings in this Agreement are for
       convenience purposes only and are not to be used to interpret or define
       the provisions of this Agreement.

       GOVERNING LAW.  THIS AGREEMENT WILL BE GOVERNED BY, CONSTRUED AND
       ENFORCED IN ACCORDANCE WITH FEDERAL LAW AND LAWS OF THE STATE OF
       FLORIDA.  THIS AGREEMENT HAS BEEN ACCEPTED BY LENDER IN THE STATE OF
       FLORIDA.

       CHOICE OF VENUE.  If there is a lawsuit, Grantor agrees upon Lender's
       request to submit to the jurisdiction of the courts of Pinellas County,
       State of Florida.

       NO WAIVER BY LENDER.  Lender shall not be deemed to have waived any
       rights under this Agreement unless such waiver is given in writing and
       signed by Lender.  No delay or omission on the part of Lender in
       exercising any right shall operate as a waiver of such right or any
       other right.  A waiver by Lender of a provision of this Agreement shall
       not prejudice or constitute a waiver of Lender's right otherwise to
       demand strict compliance with that provision or any other provision of
       this Agreement.  No prior waiver by Lender, nor any course of dealing
       between Lender and Grantor, shall constitute a waiver of any of Lender's
       rights or of any of Grantor's obligations as to any future transactions.
       Whenever the consent to subsequent instances where such consent is
       required and in all cases such consent may be granted or withheld in the
       sole discretion of Lender.

       NOTICES:  Any notice required to be given under this Agreement shall be
       given in writing, and shall be effective when actually delivered, when
       actually received by telefacsimile (unless otherwise required by law),
       when deposited with a nationally recognized overnight courier, or, if
       mailed, when deposited in the United States mail, as first class,
       certified or registered mail postage prepaid, directed to the addresses
       shown near the beginning of this Agreement.  Any party may change its
       address for notices under this Agreement by giving written notice to the
       other parties, specifying that the purpose of the notice is to change
       the party's address.  For notice purposes, Grantor agrees to keep
       Lender informed at all times of Grantor's current address.  Unless
       otherwise provided or required by law, if there is more than one
       Grantor, any notice given by Lender to any Grantor is deemed to be
       notice given to all Grantors.

       POWER OF ATTORNEY.  Grantor hereby appoints Lender as Grantor's
       irrevocable attorney-in-fact for the purpose of executing any documents
       necessary to perfect or to continue the security interest granted in
       this Agreement.  Lender may at any time, and without further
       authorization from Grantor, file a carbon, photographic or other
       reproduction of any financing statement or of this Agreement for use as
       a financing statement.  Grantor will reimburse Lender for all expenses
       for the perfection and the continuation of the perfection of Lender's
       security interest in the Collateral.


       SEVERABILITY.  If a court of competent jurisdiction finds any
       provision of this Agreement to be illegal, invalid, or unenforceable as
       to any circumstance, that finding shall not make the offending provision
       illegal, invalid, or unenforceable as to any other circumstance.  If
       feasible, the offending provision shall be considered modified so that
       it becomes legal, valid and enforceable.  If the offending provision
       cannot be so modified, it shall be considered deleted from this
       Agreement.  Unless otherwise required by law, the illegality,
       invalidity, or unenforceability of any provision of this Agreement
       shall not affect the legality, validity or enforceability of any other
       provision of this Agreement.


       SUCCESSORS AND ASSIGNS.  Subject to any limitations stated in this
       Agreement on transfer of Grantor's interest, this Agreement shall be
       binding upon and inure to the benefit of the parties, their successors
       and assigns.  If ownership of the Collateral becomes vested in a person
       other than Grantor, Lender, without notice to Grantor, may deal with
       Grantor's successors with reference to this Agreement and the
       indebtedness by way of forbearance or extension without releasing
       Grantor from the obligations of this Agreement or liability under the
       indebtedness.

       SURVIVAL OF REPRESENTATIONS AND WARRANTIES.  All representations,
       warranties, and agreements made by Grantor in this Agreement shall
       survive the execution and delivery of this Agreement, shall be
       continuing in nature, and shall remain in full force and effect until
       such time as Grantor's indebtedness shall be paid in full.



<PAGE>   4

                         COMMERCIAL SECURITY AGREEMENT                    PAGE 4
                                  (CONTINUED)

================================================================================

      TIME IS OF THE ESSENCE. Time is of the essence in the performance of this
      Agreement.

      WAIVE JURY. All parties to this Agreement hereby waive the right to any
      jury trial in any action, proceeding, or counterclaim brought by any party
      against any other party.

DEFINITIONS. The following capitalized words and terms shall have the following
meanings when used in this Agreement. Unless specifically stated to the
contrary, all references to dollar amounts shall mean amounts in lawful money of
the United States of America. Words and terms used in the singular shall include
the plural, and the plural shall include the singular, as the context may
require. Words and terms not otherwise defined in this Agreement shall have the
meanings attributed to such terms in the Uniform Commercial Code:

      ACCOUNT. The word "Account" means a trade account, account receivable,
      other receivable, or other right to payment for goods sold or services
      rendered owing to Grantor (or to a third party grantor acceptable to
      Lender).

      AGREEMENT. The word "Agreement" means this Commercial Security Agreement,
      as this Commercial Security Agreement may be amended or modified from time
      to time, together with all exhibits and schedules attached to this
      Commercial Security Agreement from time to time.

      BORROWER. The word "Borrower" means Dynacs Inc, a Delaware Corporation,
      authorized to do business in Florida as Dynacs Worldwide, Inc, and all
      other persons and entities signing the Note in whatever capacity.

      COLLATERAL. The word "Collateral" means all of Grantor's right, title and
      interest in and to all the Collateral as described in the Collateral
      Description section of this Agreement.

      DEFAULT. The word "Default" means the Default set forth in this Agreement
      in the section titled "Default".

      ENVIRONMENTAL LAWS. The words "Environmental Laws" mean any and all state,
      federal and local statutes, regulations and ordinances relating to the
      protection of human health or the environment, including without
      limitation the Comprehensive Environmental Response, Compensation, and
      Liability Act of 1980, as amended, 42 U.S.C. Section 9601, et seq.
      ("CERCLA"), the Superfund Amendments and Reauthorization Act of 1986,
      Pub. L. No. 99-499 ("SARA"), the Hazardous Materials Transportation Act,
      49 U.S.C. Section 1801, et seq., the Resource Conservation and Recovery
      Act, 42 U.S.C. Section 6901, et seq., or other applicable state or federal
      laws, rules, or regulations adopted pursuant thereto.

      GRANTOR. The word "Grantor" means Dynacs Inc, a Delaware Corporation,
      authorized to do business in Florida as Dynacs Worldwide, Inc.

      HAZARDOUS SUBSTANCES. The words "Hazardous Substances" mean materials
      that, because of their quantity, concentration or physical, chemical or
      infectious characteristics, may cause or pose a present or potential
      hazard to human health or the environment when improperly used, treated,
      stored, disposed of, generated, manufactured, transported or otherwise
      handled. The words "Hazardous Substances" are used in their very broadest
      sense and include without limitation any and all hazardous or toxic
      substances, materials or waste as defined by or listed under the
      Environmental Laws. The term "Hazardous Substances" also includes, without
      limitation, petroleum and petroleum by-products or any fraction thereof
      and asbestos.

      INDEBTEDNESS. The word "Indebtedness" means the indebtedness evidenced by
      the Note or Related Documents, including all principal and interest
      together with all other indebtedness and costs and expenses for which
      Grantor is responsible under this Agreement or under any of the Related
      Documents. IN ADDITION, AND WITHOUT LIMITATION, THE TERM "INDEBTEDNESS"
      INCLUDES ALL AMOUNTS IDENTIFIED IN THE REVOLVING LINE OF CREDIT AND
      FUTURE ADVANCES PARAGRAPHS AS CONTAINED IN ONE OR MORE OF THE RELATED
      DOCUMENTS.

      LENDER. The word "Lender" means First National Bank of Florida, its
      successors and assigns.

      NOTE. The word "Note" means the Note executed by Grantor in the
      principal amount of $4,000,000.00 dated July 7, 2000, together with all
      renewals of, extensions of, modifications of, refinancings of,
      consolidations of, and substitutions for the note or credit agreement.

      RELATED DOCUMENTS. The words "Related Documents" mean all promissory
      notes, credit agreements, loan agreements, environmental agreements,
      guaranties, security agreements, mortgages, deeds of trust, security
      deeds, collateral mortgages, and all other instruments, agreements and
      documents, whether now or hereafter existing, executed in connection with
      the Indebtedness.

GRANTOR HAS READ AND UNDERSTOOD ALL THE PROVISIONS OF THIS COMMERCIAL SECURITY
AGREEMENT AND AGREES TO ITS TERMS. THIS AGREEMENT IS DATED JULY 7, 2000.

GRANTOR:


DYNACS INC, A DELAWARE CORPORATION, AUTHORIZED TO DO BUSINESS IN FLORIDA AS
DYNACS WORLDWIDE, INC


By: /s/ RP SINGH
   -----------------------------------------------------
   Ramendra P Singh, President of Dynacs Inc, a
   Delaware Corporation, authorized to do business in
   Florida as Dynacs Worldwide, Inc


================================================================================
<PAGE>   5
STATE OF GEORGIA
COUNTY OF CLAYTON



    Before me, the undersigned, a Notary Public in and for the State aforesaid,
personally appeared Trish Johnston, Assistant Vice President of First National
Bank of Florida ("Bank") and Ramendra P. Singh as President of Dynacs Inc., a
Delaware Corporation ("Borrower"), who, being by me first duly sworn, stated:

    I. On the date hereof, the Borrower executed the foregoing attached
Commercial Security Agreement (the "Security Agreement") in favor of Bank at
Hartsfield International Airport in Clayton County, Georgia.

    II. The Borrower personally delivered the Security Agreement to Bank and
Bank accepted the Promissory Note on the date hereof at Hartsfield International
Airport in Clayton County, Georgia.

    DATED this 7th day of July, 2000.


                                        DYNACS INC., a Delaware Corporation


                                        By: /s/ RP SINGH
                                           -----------------------------
                                        Ramendra P. Singh, President


                                        FIRST NATIONAL BANK OF FLORIDA

                                        By: /s/ TRISH JOHNSTON
                                           ------------------------------
                                        Trish Johnston, Assistant Vice President


Sworn to and subscribed before
me on this 7th day of July, 2000.

/s/ HOWARD E. TURNIPSEED
-----------------------------------
Notary Public
Print Name: Howard E. Turnipseed
           ------------------------
State and County Aforesaid
My Commission Expires:      Notary Public, Clayton County, Georgia
                             My Commission Expires March 8, 2003