This book constitutes the revised selected papers from the 11th International Conference on
Risk and Security of Internet and Systems CRISIS 2016 held in Roscoff France in September
2016. The 17 full papers presented in this volume were carefully reviewed and selected from 24
submissions. They cover diverse research themes ranging from classic topics such as intrusion
detection applied cryptography formal methods and methodology for risk and security analysis
to emerging issues such as ransomware and security of software defined networking or
virtualization techniques.
