Before bug bounties, before root shells, before the word hacker meant anything at all there was a blind kid who whistled 2600 Hz and bent Ma Bell to his will. Joybubbles tells the story of Joe Engressi, the original phone phreak and a reminder that hacking started as curiosity, play, and defiance. Sundance screening. https://festival.sundance.org/program/film/6932fad21a5535277891b127