Staff Profile

William A. Casey

Senior Member of Technical Staff, SEI Cyber Threat and Vulnerability Analysis

Key Responsibilities

Research methodology to advance malicious-code detection, characterization, and analysis techniques on large-scale analysis projects.

Professional Background

Casey has worked in the areas of threat analysis, code analysis, natural language processing, genomics, bio-informatics, and applied mathematics in academia, industry, and government. Casey received his PhD in applied mathematics from the Courant Institute at New York University. He also holds an MS in mathematics from Southern Illinois University Carbondale, a master’s equivalency in computer science from the Courant Institute at New York University, and an MA in mathematics from the University of Missouri Columbia. Casey is a member of the American Mathematical Society (AMS) and Society for Industrial and Applied Mathematics (SIAM).

Publications (recent or significant)

  • W. Casey, C. Cohen, D. French, C. Hines, J. Havrilla, R. Kinder, "Diversity Characteristics in the Zeus Family of Malware," Carnegie Mellon University, CMU/SEI-2010-SR-030

  • W. Casey, C. Cohen, D. French, C. Hines, J. Havrilla, "Application of Code Comparison Techniques Characterizing the Aliser Malware Family," Carnegie Mellon University, CMU/SEI-2010-SR-031

  • Will Casey, "Coupled oscillator models for a set of communicating cells," Priami, Corrado (ed.), Computational methods in systems biology. First international workshop, CMSB 2003, Rovereto, Italy, February 24-26, 2003.

  • Ahlbrandt, Calvin; Benson, Gary; Casey, William "Minimal entropy probability paths between genome families," J. Math. Biol. 48, No.5, 563-590 (2004).

  • "Placing Probes along the Genome using Pair-wise Distance Data," W. Casey, B. Mishra and M. Wigler, Algorithms in Bioinformatics, First International Workshop, WABI 2001 Proceedings, LNCS 2149:52-68, Springer-Verlag, 2001.


  • PhD, Mathematics, New York University Courant Institute
  • MS, Computer Science, New York Universtiy Courant Institute
  • MS, Mathematics, Southern Illinois University Carbondale
  • BA, Mathematics, University of Missouri Columbia

Professional Memberships

  • SIAM
  • AMS

Contact William A. Casey