Gray Day: My Undercover Mission to Expose America's First Cyber Spy with Author Eric O'Neill.

Spies, Lies, and Cybercrime offers a blend of true espionage stories and modern cybersecurity strategies. The book helps readers understand how criminals use deception, impersonation, infiltration, and exploitation, and provides tools like the PAID framework to defend against these threats. It addresses the growing menace of cybercrime, which is increasingly powered by AI, deepfakes, and Dark Web activities.

In this book, Eric O'Neill recounts his thrilling experience as a 26-year-old FBI agent tasked with a one-on-one undercover investigation of Robert Hanssen, a veteran agent suspected of spying for the Russians for nearly two decades. With no training in face-to-face investigation, O'Neill worked in a high-security office to gather evidence against Hanssen while officially helping the FBI secure its computer systems. The book details the psychological manipulation, power struggles, and the pressure O'Neill faced during this mission, as well as the broader implications of how the United States allowed Russia to dominate in cyberespionage.