This book constitutes the refereed proceedings of the 7th European Symposium on Research in Computer Security, ESORICS 2002, held in Zurich, Switzerland, in October 2002. The 16 revised full papers presented were carefully reviewed and selected for inclusion in the proceedings. Among the topics addressed are confidentiality, probabilistic non-inference, auctions, inference control, authentication, attacks on cryptographic hardware, privacy protection, model checking protocols, mobile code, formal security analysis, access control, and fingerprints and intrusion detection.