Sun Tzu wrote it 2,500 years ago. Nation-states are using it today.

The Art of War: A Cybersecurity Companion takes Sun Tzu's complete text — every verse of the Lionel Giles translation — and maps it to the modern reality of nation-state cyber conflict. Not as metaphor. As doctrine.

Every verse is followed by an extended Cyber Parallel: a substantive analytical commentary connecting Sun Tzu's principle to how China's APT41, Russia's Sandworm, North Korea's Lazarus Group, and Iran's IRGC actually operate in the wild. Every verse is then grounded in a Field Note: a named actor, a named victim, a documented breach, and a real outcome drawn from indictments, government advisories, and post-incident reporting.

Over 200 real-world incidents. 13 chapters covering the full operational lifecycle — from pre-operation reconnaissance and supply chain compromise to destructive wiper campaigns and long-dwell intelligence collection.

This is not a technical manual. There are no firewall rules here, no YARA signatures. This is a strategic education for practitioners who want to understand why the adversary does what they do, not just what they do — and who want to think about defense at the level of doctrine, not just tools.

For analysts, threat intelligence professionals, incident responders, CISOs, and anyone trying to close the gap between knowing an adversary's name and understanding their mind.

The adversary has studied this text. Now you should too.