Critical Infrastructure Protection is a specialized book that addresses the security of critical infrastructures essential for the smooth functioning of society and the economy. It covers various aspects of information infrastructure, including computers, networks, and software systems, which play a central role in sectors such as telecommunications, energy, healthcare, and transportation. The book provides a comprehensive analysis of the challenges and solutions in the field of critical infrastructure and emphasizes the need to integrate science, technology, and policy to develop effective security strategies. It is the first volume of an annual series published by the International Federation for Information Processing and is aimed at researchers, engineers, and practitioners working in this interdisciplinary field.