Tuomas Aura received the M.Sc. and Ph.D. degrees from Helsinki University of Technology, Espoo, Finland, in 1996 and 2000, respectively. His doctoral thesis was on authorization and availability in distributed systems. He is a Professor of computer science and engineering with Aalto University, Espoo, Finland. Before joining Aalto University, he worked with Microsoft Research, Cambridge, U.K. He is interested in network and computer security and the security analysis of new technologies.