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The Cyber Crime Hall of Fame

Sep 09, 2008, 18:31 (2 Talkback[s])
(Other stories by Corinne Iozzio)

"In the 1970s, Draper used a toy whistle found in Cap'n Crunch cereal to hack phone lines and make calls. Draper realized the whistle produced the exact tone necessary to signal that an active call on a phone line had ended—2600 Hz, to be precise—when in fact it had not, thus allowing the call to continue even after the exchange thought it had ended."

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