EXHIBIT 10.69


                    AGREEMENT FOR PURCHASE AND SALE OF STOCK

      This  Agreement is made this 13th day of March,  2001 by and between V-ONE
Corporation,  a Delaware  Corporation  with its  principal  place of business at
20250 Century Boulevard,  Suite 300, Germantown,  Maryland 20874 (V-ONE) and NFR
Security,  Inc., ("NFR") a Delaware Corporation formerly known as Network Flight
Recorder, Inc. with its principal place of business at 1395 Piccard Drive, Suite
230, Rockville, MD 20850

      WHEREAS,  V-ONE is the  holder of  500,000  shares of common  stock of NFR
("NFR Common Stock"); and

      WHEREAS,  V-ONE  desires to sell its NFR Common  Stock and NFR  desires to
purchase the same on the terms and conditions hereinafter set forth; and

      WHEREAS,  NFR is undertaking a private  placement of a series of preferred
stock ("NFR Private  Placement") and the closing of the Private  Placement is to
take place on or about March 16, 2001

      NOW, THEREFORE,  in consideration of the mutual promises set forth herein,
and other good and valuable consideration,  the receipt and sufficiency of which
are hereby  acknowledged,  the parties,  intending to be legally bound, agree as
follows:

      1. To the extent  that the gross  proceeds  of the NFR  Private  Placement
available  to NFR exceed the sum of Twenty  Million Two Hundred  Fifty  Thousand
Dollars  ($20,250,000)  (such amount  exceeding  $20,250,000  being  hereinafter
referred to as the "Excess Proceeds"), NFR, will use 94% of such Excess Proceeds
to purchase  from V-ONE the NFR Common  Stock,  up to a maximum of Five  Hundred
Thousand (500,000) shares. The purchase price per share for the NFR Common Stock
shall be Three Dollars and twenty-five Cents ($3.25).

      2.  Closing of the sale of the NFR Common Stock by V-ONE to NFR shall take
place no later  than the  third  business  day  following  the date on which the
proceeds of the NFR Private  Placement  become  available  to NFR (the  "Closing
Date").  Payment of the full sum due to V-ONE shall be made in current  funds on
the  Closing  Date.  V-ONE shall  deliver to NFR on the  Closing  Date the stock
certificates  duly endorsed for transfer  evidencing the number of shares of NFR
Common Stock purchased pursuant to this Agreement.

      3. Each party shall bear its own expenses  arising out of the  preparation
and consummation of this Agreement.


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      4. V-ONE has all requisite right,  power and corporate  authority to enter
into this Agreement,  and to sell,  transfer and deliver the NFR Common Stock to
be sold  hereunder,  and this Agreement has been duly  authorized,  executed and
delivered by V-ONE and  constitutes the legal,  valid and binding  obligation of
V-ONE enforceable in accordance with its terms.

      5. V-ONE now is and on the Closing  Date shall be, the lawful owner of NFR
Common  Stock to be sold by V-ONE  pursuant  to this  Agreement.  On the Closing
Date,  V-ONE will have good and marketable  title to the NFR Common Stock,  free
and clear of all liens, encumbrances,  security interests or other restrictions.
Upon proper delivery of, and payment for, the NFR Common Stock, NFR will acquire
good and marketable title thereto to the NFR Common Stock, free and clear of all
liens,  encumbrances,  security  interests  and other  restrictions  and defects
whatsoever.

      6.  V-ONE  hereby  acknowledges  that  it has  been  furnished  with  such
documents, materials and information as V-ONE deems necessary or appropriate for
evaluating a sale of the NFR Common Stock.  V-ONE confirms that it has made such
further  investigation  of NFR as was deemed  appropriate to evaluate the merits
and risks of such sale. V-ONE acknowledges that it has had an opportunity to ask
questions of, and receive answers from,  officers of NFR, concerning the sale of
NFR Common Stock by V-ONE as well as the terms and conditions of the NFR Private
Placement.

      7. NFR  represents and warrants that it is a corporation  duly  organized,
existing  and in good  standing  under the laws of the State of Delaware and has
all requisite  corporate  authority to enter into,  and perform its  obligations
under, this Agreement.

      8. This is the entire agreement of the parties with respect to the subject
matter hereof and may be amended only by a writing executed by the parties. This
Agreement  shall be binding upon and inure to the benefit of each of the parties
and their respective successors and permitted assigns.  Neither party may assign
any right or obligation  hereunder  without the express  written  consent of the
other party.


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      IN WITNESS  WHEREOF,  the parties have executed this  Agreement  making it
effective as of the date first above written.

Witness                                   V-ONE Corporation

/s/ Lisa M. Randoll                       /s/ Margaret E. Grayson
------------------------------------      ------------------------------
                                          By Margaret E. Grayson,
                                          Chief Executive Officer

Witness                                   NFR Security, Inc.


/s/ Robert A. Aldrich                     /s/ John J. Reiss
------------------------------------      ------------------------------
                                          By John J. Reiss
                                          Chief Executive Officer

















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