Gray Day: My Undercover Mission to Expose America's First Cyber Spy

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

By Eric O'Neill

"Gray Day: My Undercover Mission to Expose America's First Cyber Spy" by Eric O'Neill recounts his real-life, high-stakes mission to gather evidence against FBI mole Robert Hanssen, highlighting the challenges of espionage and cybersecurity in the modern age.