explores the battlefields, participants and tools and techniques used during today's digital conflicts. The concepts discussed in this book will give those involved in information security at all levels a better idea of how cyber conflicts are carried out now, how they will change in the future and how to detect and defend against espionage, hacktivism, insider threats and non-state actors like organized criminals and terrorists. Every one of our systems is under attack from multiple vectorsour defenses must be ready all the time and our alert systems must detect the threats every time.