Cyberjutsu is a revolutionary approach to information assurance that turns the techniques, tactics and procedures (TTPs) of ancient ninjas into a practical cybersecurity field guide. Author Ben McCarty, while not a ninja himself, is a former NSA developer and the U.S. Army’s first cyber warfare specialist. He spent years analyzing formerly classified Japanese scrolls, finding dozens of applicable insights on defensive and offensive security, and direct parallels with modern infosec concepts. His research reveals how the training methodologies of Japan’s most notorious covert agents – the original Advanced Persistent Threat (APT) – can be adapted into highly effective practices for countering information warfare, deceptive infiltration, espionage, zero-day attacks, and more.