PhD, State University of New York, Stony Brook. With Georgia Institute of Technology: 1985, Assistant Professor, School of Information and Computer Science; currently, Professor of Computer Science, College of Computing. Concurrently, Global Professor of Engineering, New York University at Abu Dhabi. 2004-12, Director, Georgia Tech Information Security Center. Author of over 100 research papers. Research interests span operating systems and middleware, fault-tolerant systems and computer security.