This book presents an overview of how to organize and consider the many functions in cybersecurity operations centers (SOCs). It describes strategies that can be applied to SOCs of all sizes, from two people to large, multi-national centers with hundreds of people. It is intended for all cybersecurity operations center personnel, from new professionals just starting in a SOC to managers considering capability expansion of the SOC. Starting with a Fundamentals section table which summarizes functional categories and areas, the book guides cyber professionals through applying mission context to 11 strategies of a worldclass SOC.