John Thomas Draper (born March 11, 1943), also known as Captain Crunch, Crunch, or Crunchman (after the Cap'n Crunch breakfast cereal mascot), is an American computer programmer and former phone phreak. He is a widely known figure within the computer programming world and the hacker and security community, and generally lives a nomadic lifestyle. In 2017, the organizers of several computer security events banned him from attending following published allegations of sexually inappropriate behavior. Draper denied some of the allegations, but didn't directly address others.