This book provides an integrated view and a comprehensive framework of the various issues relating to cyber infrastructure protection. It provides the foundation for a long-term policy and roadmap for cyber security as well as technology challenges. The book is divided into three main parts. The first part deals with strategy and policy issues related to cyber security. It provides a cyber power theory, discussion of Internet survivability as well as large scale data breaches and the role of cyber power in humanitarian assistance. The second part covers social and legal aspects and discusses the attack dynamics of political and religiously motivated hackers. The third part discusses the technical aspects including the resilience of data centers, intrusion detection, and with strong focus on IP-networks.