Phreaking
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Phreaking is a slang term coined to describe the activity of a culture of people who study, experiment with, or explore telecommunication systems, such as equipment and systems connected to public tel
A Cap'n Crunch breakfast cereal toy produced a 2600 hertz tone.
Blue box
John Draper
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John Thomas Draper is an American computer programmer and former phone phreak. He is a widely known figure within the hacker and computer security community. He is primarily known as a colorful and un
Phreaking
…rudimentary understanding of how phone networks worked. Bill discovered that a recorder he owned could also play the tone at 2600 Hz with the same effect. John Draper discovered through his friendship with Engressia that the free whistles given out in Cap'n Crunch cereal boxes also produced a 2600 Hz tone when blown…
Draper at Maker Faire Berlin, 2015
John Draper in Canberra, Australia, 1995