The Disk Jock was a famed Apple II cracker who moved onto hacking until he was busted in June 1988.

An interview was published in Phrack.

My eventual disgust with the pirate world came when products such as "Pirate's Friend" came out, allowing people to sector edit out my name and insert theirs. I had spent quite a lot of time trying to find new software, and enjoyed the ego stroke of having my name passed around. I had a lot of respect for book authors that were plagiarized after that...