1957 – Before computer hacking, there was phone phreaking. Phreaking is a slang term meaning the manipulation of a telephone system. Most commonly, phreaks illegally hack into telephone
networks to tap phone lines or make long-distance calls for free. Josef Engressia, AKA Joybubbles, is cited as being the very first phone phreak in the US. Born blind, but with perfect pitch, Josef was only 7 years old when he accidentally discovered his talent. Fascinated with telephones, he mimicked the operator tones which activated phone switches. This enabled him to place free calls simply by whistling the correct frequency into any telephone.