ORG University of Southern California/ISI Title BIO Dr. Clifford Neuman is director of the Center for Computer Systems Security at the Information Sciences Institute (ISI) of the University of Southern California (USC), Associate Division Director of the Computer Networks Division at ISI, and a faculty member in the Computer Science Department at USC. Dr. Neuman conducts research in distributed systems, computer security, and electronic commerce. He was a principal designer of the Kerberos authentication system, which among other deployments, provides user authentication for Microsoft's Windows 2000 and Windows XP. Dr. Neuman also developed the NetCheque and NetCash systems, and the Prospero Directory Service. His current research focuses on the use of dynamic security policies in distributed systems that can support the formation of dynamic coalition's of cooperating organizations while adapting and responding to perceived network threats.