This book constitutes the post-conference proceedings of the 11th International Conference on Critical Information Infrastructures Security, CRITIS 2016, held in Paris, France, in October 2016. The 22 full papers and 8 short papers presented were carefully reviewed and selected from 58 submissions. They present the most recent innovations, trends, results, experiences and concerns in selected perspectives of critical information infrastructure protection covering the range from small-scale cyber-physical systems security via information infrastructures and their interaction with national and international infrastructures.

This book constitutes revised selected papers from the 6th International Workshop on Critical Information Infrastructure Security, CRITIS 2011, held in Lucerne, Switzerland, in September 2011. The 16 full papers and 6 short papers presented in this volume were carefully reviewed and selected from 38 submissions. They deal with all areas of critical infrastructure protection research.

The present volume aims to provide an overview of the current understanding of the so-called Critical Infrastructure (CI), and particularly the Critical Information Infrastructure (CII), which not only forms one of the constituent sectors of the overall CI, but also is unique in providing an element of interconnection between sectors as well as often also intra-sectoral control mechanisms. The 14 papers of this book present a collection of pieces of scientific work in the areas of critical infrastructure protection. In combining elementary concepts and models with policy-related issues on one hand and placing an emphasis on the timely area of control systems, the book aims to highlight some of the key issues facing the research community.

This book constitutes revised selected papers from the 10th International Conference on Critical Information Infrastructures Security, CRITIS 2015, held in Berlin, Germany, in October 2015. The 18 full and 6 short papers presented in this volume were carefully reviewed and selected from 54 submissions. They are organized in topical sections named: critical information infrastructure protection; critical infrastructure resilience assessment; emergency management: critical infrastructure preparedness; modelling, simulation and analysis approaches; electric grid protection and resilience; and CIPRNet young CRITIS award candidate papers.