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EXHIBIT 1
JOINT FILING AGREEMENT
This will confirm the agreement by and between each of the undersigned,
in accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934,
as amended, that the Schedule 13G filed on or about this date with respect to
the beneficial ownership of the undersigned of shares of the Common Stock, par
value $.01 per share, of Intrusion.com, Inc., is being filed on behalf of each
of the undersigned. This agreement may be executed in two or more counterparts,
each of which shall be deemed an original, but all of which together shall
constitute one and the same instrument.
Dated: September 22, 2000
SCIENCE APPLICATIONS INTERNATIONAL CORPORATION
By: /s/ DOUGLAS E. SCOTT
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Name: Douglas E. Scott
Title: Senior Vice President and General Counsel
SAIC Venture Capital Corporation.
By: /s/ IRA J. MILLER
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Name: Ira J. Miller
Title: President
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