Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page 2600: The Hacker Quarterly:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

The magazine's name comes from the phreaker discovery in the 1960s that the transmission of a 2600 hertz tone – which could be produced perfectly with a plastic toy whistle given away free with Cap'n Crunch cereal, discovered by friends of John Draper – over a long-distance trunk connection gained access to operator mode, and allowed the user to explore aspects of the telephone system that were not otherwise accessible.[1] The magazine was given its name by David Ruderman, who co-founded the magazine with his college friend, Eric Corley.[2] Ruderman ended his direct involvement with the magazine three years later.[citation needed]