Document:

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                                                             EXHIBIT 10.2

                    [FORM OF RELEASE AND COVENANT NOT TO SUE]

       TO ALL TO WHOM THESE PRESENTS SHALL COME OR MAY CONCERN, KNOW THAT:

WHEREAS on January 21, 2005, Vanguard Info-Solutions Corporation, The A
Consulting Team, Inc. ("TACT"), Shmuel BenTov, and Andrew Ball (among others)
entered into certain agreements in contemplation of a transaction (the
"Contemplated Transaction") between Vanguard Info-Solutions Corp. and TACT,
among them: (i) the Share Exchange Agreement, among Vanguard Info-Solutions
Corp., its stockholders named therein, and TACT (the "Share Exchange
Agreement"); (ii) the Stock Purchase Agreement between Oak Finance Investments
Ltd. and TACT (the "Oak-TACT Agreement"); and (iii) the Stock Purchase Agreement
between Oak Finance Investments Ltd. and BenTov (the "Oak-BenTov Agreement")
(collectively, "the Transaction Agreements"); and

WHEREAS, on August 4, 2005, TACT and BenTov terminated the Contemplated
Transaction and the Transaction Agreements, pursuant to their respective terms,
each of which provided that the Agreements could be terminated where the
Contemplated Transaction had not been consummated by July 31, 2005 (Share
Exchange Agreement Section 12.2(i); Oak-TACT Agreement Section 11.1(b);
Oak-BenTov Agreement Section 12.1(b));

NOW, THEREFORE, in consideration of the sum of TEN DOLLARS ($10) and other good
and valuable consideration, including releases received from the following
parties:

         [Insert names of parties who deliver releases]

         receipt whereof is hereby acknowledged:

1. [Insert Name of Releasor] (the "RELEASORS") release and discharge the [Insert
Names] (the "RELEASEES") from any and all claims, rights, obligations, demands,
charges, complaints, actions, suits, causes of action, losses, damages, bonds
and liabilities of any kind for damages or other relief that any one or more of
the RELEASORS ever had, now has or hereafter may have against any one or more of
the RELEASEES by reason of any matter, cause or thing whatsoever from the
beginning of the world to and including the date of full execution of this
Release and Covenant Not to Sue, whether known or unknown, suspected or
unsuspected, foreseen or unforeseen, accrued or unaccrued, actual or potential,
contingent or absolute, secured or unsecured, disclosed or undisclosed, hidden
or concealed, direct or derivative or brought in any other capacity, whether
under federal, state, common or any other law, including (without limitation)
all of the claims, if any, that may have survived the termination of the Share
Exchange Agreement (Section 12.5(b)), the Oak-TACT Agreement (Section 11.2), or
the Oak-BenTov Agreement (Section 12.2) (the "Released Claims").

2. The RELEASORS covenant not to file or commence, or solicit or encourage or
directly or indirectly cause others to file or commence, any claim, right,
demand, charge, complaint, suit, cause of action, action or proceeding of any
kind or nature whatsoever asserting, directly or indirectly, any of the Released
Claims.

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3. Notwithstanding anything herein to the contrary, RELEASORS reserve any and
all rights, claims, demands, damages, causes of action or suits, including
(without limitation) those for indemnification, that RELEASORS might now have or
that might subsequently accrue to them against any of the Reserved Parties
(defined below) by reason of any matter or thing whatsoever from the beginning
of the world to and including the date of full execution of this Release and
Covenant Not to Sue, and particularly growing out of or in any way connected
with, directly or indirectly, the Contemplated Transaction or the Transaction
Agreements (hereinafter, "Reserved Claims").

4. No Reserved Claim, affirmative defense in connection with a claim related to
the Contemplated Transaction or the Transaction Agreements or other document
filed with a court in connection with a claim related to the Contemplated
Transaction or the Transaction Agreements shall contain any allegation,
statement, observation, or opinion that impugns or disparages any of the [insert
name of applicable RELEASEES] or that accuses any of the [insert the name of the
applicable RELEASEES] of engaging in any wrongful, unlawful or improper conduct.

5. "Reserved Parties" shall mean the following individuals and entities, except
and excluding in all respects [insert name of applicable RELEASEE],
notwithstanding anything below to the contrary:

         [Insert Names of Reserved Parties]

6. The RELEASORS waive their rights, to the extent permitted by law, to any
benefits of the provision of section 1542 of the California Civil Code or any
other similar state law, federal law, principle of common law, or any other law,
which may have the effect of limiting the releases set forth above. Section 1542
of the California Civil Code provides:

         A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS WHICH THE CREDITOR DOES NOT
         KNOW OR SUSPECT TO EXIST IN HIS OR HER FAVOR AT THE TIME OF EXECUTING
         THE RELEASE, WHICH IF KNOWN BY HIM OR HER MUST HAVE MATERIALLY AFFECTED
         HIS OR HER SETTLEMENT WITH THE DEBTOR.

7. This Release and Covenant Not to Sue may not be changed orally, and shall be
governed by and construed under the laws of the State of New York without resort
to its conflict of laws principles.

8. This Release and Covenant Not to Sue may be executed with original or
facsimile signatures in one or more counterparts, each of which will be deemed
to be an original copy of this Release and Covenant Not to Sue and all of which,
when taken together, will be deemed to constitute one-and-the-same document.

           [THE REST OF THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK.]

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     IN WITNESS WHEREOF, the RELEASORS have hereunto set RELEASORS' hands on
the ____ day of May, 2006.

                                     [NAME OF RELEASOR]

                                     By: _________________________________
                                         Name: ___________________________
                                         Title: __________________________

STATE OF NEW YORK, COUNTY OF NEW YORK  SS.:

     On May ___, 2006, before me, the undersigned, personally came
______________________, to me known or proved to me on the basis of satisfactory
evidence to be the individual whose name is subscribed to the within instrument,
who, by me duly sworn, did depose and say that deponent resides at
__________________________________________, that deponent is the
__________________ of [Name of Releasor], the corporation described in, and
which executed the foregoing RELEASE, and that deponent signed deponent's name
pursuant to authority granted by the board of directors of the corporation.

                                     ------------------------------------------
                                     (signature and office of individual taking
                                     acknowledgment)

                                     ------------------------------------------
                                     [NAME OF RELEASOR]

STATE OF NEW YORK, COUNTY OF NEW YORK  SS.:

     On May _____, 2006, before me, the undersigned, personally appeared [NAME
OF RELEASOR], personally known to me or proved to me on the basis of
satisfactory evidence to be the individual whose name is subscribed to the
within instrument and acknowledged to me that he executed the same.

                                     -------------------------------------------
                                     (signature and office of individual taking
                                     acknowledgment)PROMISSORY
      NOTE

     

     

    
      	$10,000.00	
              Menlo
                Park, California

            	
              April
30,
                2006

            

    

    

    FOR
      VALUE
      RECEIVED, the undersigned Sand Hill IT Security Acquisition Corp., a Delaware
      corporation (“Maker”),
      promises to pay to Humphrey P. Polanen (“Payee”),
      at
      such place as Payee may from time to time designate, the aggregate principal
      sum
      of Ten Thousand and no/100ths Dollars ($10,000.00), together with interest
      on
      the unpaid principal balance of this promissory note (“Note”).

    

    1. Interest.
      The
      unpaid principal balance of this Note from time to time outstanding shall bear
      simple interest at ten percent (10%) per annum.

    

    2. Payments.
      The
      principal and all accrued and unpaid interest shall be due and payable on the
      earlier of the consummation of the merger of St. Bernard Software, Inc. and
      Sand
      Hill Merger Corp. (the “Merger”) and July 26, 2006. For purposes of the payment
      of any amounts pursuant to the terms of this Note, if such date falls on a
      day
      that is a day on which commercial banks are not authorized to be open or are
      required to be closed, then the date shall be deemed to be the next succeeding
      day where such commercial banks may remain open.

    

    3. Prepayments.
      Maker
      shall have the right to prepay, at any time without premium or penalty, in
      whole
      or in part, (a) the accrued interest and (b) the principal of this
      Note, provided that all accrued interest has first been paid.

    

    4. Events
      of Default and Remedies.
      As used
      herein, the term “Event
      of Default”
shall
      include any or all of the following if same exist on the tenth (10th) day
      after written notice by Payee to Maker which certifies such default:
      (a) nonpayment of any principal or interest upon the date same shall be due
      and payable under the terms of this Note; or (b) the adjudication of Maker
      as bankrupt, or the taking of any voluntary action by Maker or any involuntary
      action against Maker seeking an adjudication of Maker as bankrupt, or seeking
      relief by or against Maker under any provision under the Bankruptcy Code. Upon
      the occurrence and during the continuation of an Event of Default, Payee may,
      at
      his option, without further notice of nonpayment, demand for payment,
      presentment for payment, notice of intention to accelerate maturity, notice
      of
      acceleration of maturity, or any other notice or demand of any kind to Maker,
      declare the entire unpaid principal balance and accrued interest on this Note
      to
      be immediately due and payable, at which time such amounts shall become
      immediately due and payable. Payee may exercise this option to accelerate
      maturity hereof during any default by Maker regardless of any prior forbearance
      by Payee.

    

    5. Disclaimer
      of Trust Fund.
      Payee
      hereby acknowledges that Maker
      has
      established a trust fund consisting of a portion of the proceeds of Maker’s
      initial public offering, initially in the amount of approximately $21 million
      (the “Trust
      Fund”),
      for
      the benefit of the public stockholders of Maker and Maker may disburse monies
      from the Trust Fund only (a) to the public stockholders in the event of the
      redemption of their shares or the liquidation of Maker or (b) to Maker after
      it
      consummates a business combination. Payee hereby agrees that it does not have
      any right, title, interest or claim of any kind in or to any monies in the
      Trust
      Fund (“Claim”)
      and
      hereby waives any Claim it may have in the future as a result of, or arising
      out
      of, any contracts or agreements with Maker and will not seek recourse against
      the Trust Fund for any reason whatsoever.

    

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    6. No
      Waiver.
      No
      delay on the part of Payee or other holder of this Note in the exercise of
      any
      power or right under this Note, shall operate as a waiver hereof, nor shall
      a
      single or partial exercise of any power or right preclude other or further
      exercise thereof or the exercise of any other power or right. Enforcement by
      the
      holder of this Note for the payment hereof shall not constitute an election
      by
      such holder of remedies so as to preclude the exercise of any other remedy
      available to such holder.

    

    7. Waiver.
      Except
      as otherwise set forth herein, Maker and all endorsers, sureties, and guarantors
      hereof hereby jointly and severally waive all exemption rights under any
      applicable law, and also waive presentment for payment, demand, notice of
      nonpayment, valuation, appraisement, protest, demand, dishonor, notice of
      protest, notice of intent to accelerate, notice of acceleration, and all other
      notices, and without further notice hereby consent to renewals, extensions,
      or
      partial payments either before or after maturity.

    

    8. Severability.
      The
      invalidity, or unenforceability in particular circumstances, of any provision
      of
      this Note shall not extend beyond such provision or such circumstances and
      no
      other provision of this Note shall be affected thereby.

    

    9. Costs
      of Collection.
      If this
      Note is placed in the hands of any attorney for collection, or is collected
      by
      suit or through probate or bankruptcy proceeding, Maker agrees to pay reasonable
      attorneys’ fees and disbursements in addition to other amounts due.

    

    10. Notices.
      All
      notices or demands required or permitted hereunder shall be in writing and
      shall
      be deemed given when actually delivered or on the third business day following
      the day on which the same shall have been mailed by registered or certified
      mail, postage prepaid, addressed to the parties at the addresses herein. Either
      Maker or Payee may change its respective address or addressee by giving notice
      of such change to the other party in the manner provided herein. For this
      purpose only, unless and until such written notice is actually received, the
      address and addressee specified for each party shall be deemed to continue
      in
      effect for all purposes.

    

    11. Governing
      Law.
      THIS
      NOTE SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE
      STATE
      OF DELAWARE WITHOUT REGARD TO CHOICE OF LAW PRINCIPLES.

    

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    IN
      WITNESS WHEREOF, the undersigned has executed this Note to be effective as
      of
      the date first written above.

     

     

    
      	 	
              MAKER:

              

              SAND
                HILL IT SECURITY ACQUISITION CORPORATION

               

              

              By: /s/
                Keith Walz

              Keith
                Walz

              Chief
                Financial Officer

            

    

    
 

    Acknowledged
      and accepted on the date first written above:

    

    PAYEE:

    

    

    /s/
      Humphrey P. Polanen

    Humphrey
      P. Polanen

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