This book constitutes the refereed proceedings of the Second International Conference on Decision and Game Theory for Security, GameSec 2011, held in College Park, Maryland, USA, in November 2011. The 16 revised full papers and 2 plenary keynotes presented were carefully reviewed and selected from numerous submissions. The papers are organized in topical sections on attacks, adversaries, and game theory, wireless adhoc and sensor networks, network games, security insurance, security and trust in social networks and security investments. Jonathan Katz is an associate professor in the Department of Computer Science at the University of Maryland. Active in the cryptography research community, he has held visiting positions at UCLA, l'Ecole Normale Supérieure, and IBM. He has given several introductory lectures on cryptography to general audiences in both industry and government.
