The 75-Cent Mystery: How a Tiny Error Exposed a Cold War Spy

In 1986, Clifford Stoll -- originally a Berkley Lab astronomer -- had become the manager of their computer department. One day, he noticed something, a small accounting glitch that seemed insignificant, but would become the first great Cold War hacking story.

One tiny clue led Clifford Stoll on a real-life digital spy chase that included West Germany, the KGB, and the most top-secret, classified information on earth.

In an era of dial-up phone lines and dot matrix printers, computer security wasn't given much priority, but this event would lead to the dawn of modern cybersecurity.

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