Bill is a Senior Member of the Technical Staff at the CERT® Coordination Center—a unit of the Software Engineering Institute—specializing in analysis and modeling of software vulnerability.
Bill has served in various capacities within the CERT/CC since he joined in 1995. Before join CERT, he played various technical and leadership roles the computing and networking infrastructures at the University of Pittsburgh and Louisiana Tech University. He holds a B.S. in physics and an M.S. in computer science from Louisiana Tech University.
William L. Fithen, Shawn V. Hernan, Paul F. O'Rourke, and David A. Shinberg. "Formal Modeling of Vulnerability." Bell Labs Technical Journal 8(4), 173-186 (2004).
William A. Arbaugh, William L. Fithen, and John McHugh. "Windows of Vulnerability: a Case Study Analysis." IEEE Computer, 2000.