Defense systems, computer networks and financial systems are increasingly subject to attack by terrorists, fraudsters and saboteurs. New challenges require concerted action from researchers to develop successful designs for computer networks that are resilient to deliberate attacks, and capacities must be built into the network to allow for quick and automatic recovery with little or no interruption or loss. This book contains contributions to the NATO Advanced Research Workshop on The Use of Risk Analysis in Computer-Aided Persuasion held in Antalya, Turkey in May 2011. The goal has been to f.