The term DEF CON comes from the movie WarGames, referencing the U.S. Armed Forces defense readiness condition (DEFCON).
Granick has been a speaker at conferences such as Def Con and ShmooCon, and has also spoken at the National Security Agency as well as to other law enforcement officials.
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The project was started in August 2002 at the Blackhat and DEF CON Conferences by several industry notables (including H. D. Moore, rain.forest.puppy, and others).
He also speaks at numerous conferences and trade shows, including DEF CON, RSA Data Security Conference, on various topics in the computer security field, and has appeared on the cover of Wired Magazine, in numerous television, radio, and print articles on HavenCo and Sealand.
Another of his books, "Cybershock" (2000, 2001), is a non-technical look at the Defcon conference, hackers in general, Phreaking and the importance of computer security.
"Def. Con. One" is a single by Pop Will Eat Itself released in 1988 from the album This Is the Day...This Is the Hour...This Is This!, It samples the songs "I Wanna Be Your Dog" by The Stooges, Funkytown by disco band Lipps Inc, Crazy Horses, a 1972 hit by The Osmonds and the Twilight Zone theme tune.