Best Ph.D. Thesis 2009
Claudio Agostino Ardagna, University of Milan, supervisor Pierangela Samarati, is the winner of the second edition, with a thesis titled "Privacy and Security in Distributed and Pervasive Systems" (e-link).
Best Ph.D. Thesis 2008
Steven J. Murdoch, University of Cambridge, supervisor Ross Anderson, is the winner of the first edition, with a thesis titled "Covert channel vulnerabilities in anonymity systems" (e-link).