This book constitutes the thoroughly refereed post-workshop proceedings of the 18th International Workshop on Security Protocols, held in Cambridge, UK, in March 2010. After an introduction the volume presents 16 revised papers and one abstract, each followed by a revised transcript of the discussion ensuing the presentation at the event. The theme of this year's workshop was "Virtually Perfect Security".

This book constitutes the thoroughly refereed post-proceedings of the 16th International Workshop on Security Protocols, SP 2008, held in Cambridge, UK, in April 2008. The 17 revised full papers presented together with edited transcriptions of some of the discussions following the presentations have gone through multiple rounds of reviewing, revision, and selection. The theme of this workshop was “Remodelling the Attacker” with the intention to tell the students at the start of a security course that it is very important to model the attacker, but like most advice to the young, this is an oversimplification. Shouldn’t the attacker’s capability be an output of the design process as well as an input? The papers and discussions in this volume examine the theme from the standpoint of various different applications and adversaries.

This book constitutes the thoroughly refereed post-workshop proceedings of the 26th International Workshop on Security Protocols, held in Cambridge, UK, in March 2018. The volume consists of 17 thoroughly revised invited papers presented together with the respective transcripts of discussions. The theme of this year's workshop was fail-safe and fail-deadly concepts in protocol design. The topics covered included failures and attacks; novel protocols; threat models and incentives; cryptomoney; and the interplay of cryptography and dissent.

Security and Privacy in the Age of Uncertainty covers issues related to security and privacy of information in a wide range of applications including: *Secure Networks and Distributed Systems; *Secure Multicast Communication and Secure Mobile Networks; *Intrusion Prevention and Detection; *Access Control Policies and Models; *Security Protocols; *Security and Control of IT in Society. This volume contains the papers selected for presentation at the 18th International Conference on Information Security (SEC2003) and at the associated workshops. The conference and workshops were sponsored by the International Federation for Information Processing (IFIP) and held in Athens, Greece in May 2003.

This book constitutes the thoroughly refereed post-proceedings of the 15th International Workshop on Security Protocols, held in Brno, Czech Republic, in April 2007. The 15 revised full papers presented together with edited transcriptions of some of the discussions following the presentations have passed through multiple rounds of reviewing, revision, and selection. The topics addressed reflect the question "When is a Protocol Broken?" and how can it degrade gracefully in the face of partially broken assumptions, or how can it work under un(der)specified assumptions.

This is the first book to present a full, socio-technical-legal picture on the security practices of cyber criminals, based on confidential police sources related to some of the world's most serious and organized criminals.