"Cuckoo's Egg" (book)

"The Cuckoo's Egg" is a nonfiction book by Clifford Stoll that tells the story of his discovery of a hacker breaking into U.S. military and academic computer systems in the late 1980s. As a systems administrator, Stoll investigates a mysterious 75-cent billing error, which leads him on a journey to track down the intruder. Through meticulous detective work, Stoll uncovers a larger international espionage operation. The book highlights the vulnerabilities of computer networks and the importance of cybersecurity, blending elements of a thrilling mystery with insights into the early days of cybercrime.