People: Sourcefire, Inc. (FIRE.O)

Mr. Thomas D. Ashoff is Vice President of Engineering of Sourcefire in April 2003. Prior to joining Sourcefire, Mr. Ashoff worked for Network Associates Inc. (now McAfee Inc.) in a number of capacities from April 1998 until February 2003. At Network Associates, Mr. Ashoff was Vice President, Strategic Product Engineering in the Technology Research Division, as well as Vice President of Engineering for Network Associates’ PGP Security business unit. Mr. Ashoff joined Network Associates in 1998 when it acquired Trusted Information Systems (TIS). At TIS, Mr. Ashoff was the Senior Development Manager for the Gauntlet Firewall and VPN products. Prior to TIS, Mr. Ashoff developed software for GTE Spacenet/Contel ASC from 1988 to June 1994. Mr. Ashoff also provided consultancy services to the National Security Agency (NSA) through HRB Singer, Inc. from 1985 until 1988 and was employed by the NSA from 1982 until 1985. Mr. Ashoff holds a B.S. in Computer Science from the University of Pittsburgh.