A fundamental outline of security concepts, methodologies, and relevant information pertaining to SCADA Control systems and technology, this comprehensive handbook provides essential information for securing industrial automation and process control systems as part of a Critical Infrastructure protection program. Addressing global applications for securing critical government and economic systems, the authors present a best practices approach that includes methods of securing environments at the strategic, tactical, and operational levels. The authors include end-of-chapter questions and four case studies of well known public cyber-related incidents for use in training or academic courses.