John Draper

John Draper, universally known by the nickname "Captain Crunch," is one of the founding figures of phone phreaking, the 1960s-70s subculture that explored and exploited the analog Bell telephone network's tone-based signaling. Born March 11, 1943, Draper enlisted in the U.S. Air Force in 1964, and was honorably discharged in 1968. In 1969 he was introduced to phone phreaking by Denny Teresi, a blind teenager and fellow pirate-radio hobbyist.

The Cap'n Crunch Whistle and the 2600 Hz Discovery

Draper's lasting fame rests on a discovery connected to a promotional toy: a plastic whistle packaged as a prize in boxes of Cap'n Crunch cereal produced a pure 2600 Hz tone. That exact frequency was used by AT&T's long-distance switching equipment as a supervisory signal indicating an idle trunk line; injecting it into a line effectively told the network the call had ended while leaving the caller connected. Draper and other phreakers built "blue boxes" — small electronic tone generators that could reproduce the full set of Bell System routing tones and place long-distance calls without charge. His exploits were prominently featured in Ron Rosenbaum's October 1971 Esquire article "Secrets of the Little Blue Box," which introduced blue-box phreaking to a mass audience.

Arrests and Connection to Apple's Founders

The Esquire publicity drew law-enforcement attention, and in May 1972 Draper was arrested on fraud charges for illegal long-distance calls; further toll-fraud charges led to roughly four months in federal prison in 1976. After reading the 1971 Esquire article, a young Steve Wozniak sought out Draper to compare notes on blue-box design; Wozniak subsequently built blue boxes that Steve Jobs sold on the Berkeley campus, an early moneymaking partnership both men later described as a direct precursor to founding Apple Computer.

EasyWriter and Later Career

During a 1979 work-furlough sentence, Draper wrote EasyWriter, generally regarded as the first word processor for the Apple II. EasyWriter was later ported to the IBM PC on that machine's 1981 launch. Draper went on to other technology roles, including work at Autodesk and the security firm ShopIP, where he designed the OpenBSD-based "Crunchbox" firewall.

Legacy

Draper's discovery linking a cereal-box whistle to AT&T's 2600 Hz control tone, and his role in popularizing blue-box phreaking, is consistently cited by historians of computing as a formative episode in hacker culture and an origin point for the entrepreneurial partnership between Steve Wozniak and Steve Jobs.

Timeline

• 1943-03-11Born John Thomas Draper.
• 1969Introduced to phone phreaking by fellow pirate-radio enthusiast Denny Teresi.
• 1971Featured in Ron Rosenbaum's Esquire article 'Secrets of the Little Blue Box'; Steve Wozniak seeks Draper out to discuss blue-box design.
• 1972-05Arrested on seven counts of fraud by wire for illegal long-distance calls.
• 1976Serves roughly four months in federal prison at Lompoc, California, following renewed toll-fraud charges.
• 1979Writes EasyWriter, an early word processor for the Apple II, during a work-furlough jail sentence.
• 1981EasyWriter is ported to the IBM PC and selected as one of its original word-processing applications.