The Cuckoo’s Egg: Tracking a Spy Through the Maze of Computer Espionage

In this white-knuckled true story that is ＂as exciting as any action novel＂ (The New York Times Book Review), an astronomer-turned-cyber-detective begins a personal quest to expose a hidden network of spies that threatens national security and leads all the way to the KGB.

When Cliff Stoll followed the trail of a 75-cent accounting error at his workplace, the Lawrence Berkeley National Laboratory, it led him to the presence of an unauthorized user on the system. Suddenly, Stoll found himself crossing paths with a hacker named ＂Hunter＂ who had managed to break into sensitive United States networks and steal vital information.

Stoll made the dangerous decision to begin a one-man hunt of his own: spying on the spy. It was a high-stakes game of deception, broken codes, satellites, and missile bases, one that eventually gained the attention of the CIA. What started as simply observing soon became a game of cat and mouse that ultimately reached all the way to the KGB.

When, to the delight of the baffled FBI, CIA, and NSA, Cliff Stoll nailed his spy, he wound up on the front page of The New York Times. The story, broken in 1989, quickly gathered headlines across the nation and Stoll became a genuine, if somewhat unlikely, American hero.

An astronomer by training and a computer expert by accident, Cliff Stoll has become a leading authority on computer security, an issue recognized everywhere as among the most important security problems of our times. He has given talks for the FBI, CIA, and NSA, and has appeared before the U.S. Senate. Stoll is an astronomer at the Harvard-Smithsonian Center for Astrophysics and lives in Cambridge, Massachusetts.