Intrusion Inc. Announces Financial Release Date and Conference Call

RICHARDSON, Texas–Jan. 22, 2003–Intrusion Inc. (NASDAQ:INTZ), (“Intrusion”) announces fourth quarter and year-end 2002 financial results on Thursday, January 30, 2002. The press release will be published over the wire services after the market close. The release will also be available on the company’s web site at www.intrusion.com. Intrusion management will review the Company’s financial and operational progress for the fourth quarter and 2002 calendar year during a conference call later that day at 4:00 P.M., CST.

Interested investors can access the call at 1-800-399-2043 (outside the United States, please dial 1-706-634-5518) at 4:00 P.M., CST. For those unable to participate in the live conference call, a replay will be accessible beginning January 30, 2003 at approximately 7:00 P.M., CST until February 14, 2003 by calling 1-800-642-1687 (if outside the United States, 1-706-645-9291). At the replay prompt, enter conference identification number 7751993. In addition, a live and archived audio webcast of the conference call will be available at www.intrusion.com.

About Intrusion Inc.

Intrusion Inc. is a leading global provider of enterprise security solutions for the information-driven economy. Intrusion’s suite of security products help businesses protect critical information assets by quickly detecting, analyzing and responding to network- and host-based attacks. The Company’s products include intrusion detection systems, and modular, scalable “Secured by Check Point” VPN security appliances for Check Point Software Technologies’ (NASDAQ: CHKP) market-leading VPN-1/FireWall-1. For more information, please visit www.intrusion.com.