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DEF CON (also written as DEFCON or Defcon) is one of the world's largest annual hacker conventions, held every year in Las Vegas, Nevada. The first DEF CON took place in June 1993. Many of the attendees at DEF CON include computer security professionals, journalists, lawyers, federal government employees, security researchers, and hackers with a general interest in software, computer architecture, phone phreaking, hardware modification, and anything else that can be "cracked." The event consists of several tracks of speakers about computer- and cracking-related subjects, as well as social events and contests in everything from creating the longest Wi-Fi connection and cracking computer systems to who can most effectively cool a beer in the Nevada heat. Other contests, past and present, include lockpicking, robotics-related contests, art, slogan, coffee wars, scavenger hunt and Capture the Flag. Capture the Flag (CTF) is perhaps the best known of these contests. It is a hacking competition where teams of crackers attempt to attack and defend computers and networks using certain software and network structures. CTF has been emulated at other cracking conferences as well as in academic and military contexts. Conference founder Jeff Moss contends that the quality of submitted talks has diminished since DEF CON's inception because security researchers have found companies and government agencies to pay for the research, leaving the researchers less willing to unveil their zero-day vulnerability research "for free" at DEF CON. Additionally, the conference has gone from one track to five and accepting speaker proposals for five times the research lowers the density of "elite" speeches. Since DEF CON 11, fundraisers have been conducted for the Electronic Frontier Foundation. The first fundraiser was a dunk tank and was an "official" event. The EFF now has an event named "The Summit" hosted by the Vegas 2.0 crew that is an open event and fundraiser. DefCon 18 (2010) hosted a new fundraiser called MohawkCon. In 2010, over 10,000 people attended DEF CON 18. Federal law enforcement agents from the FBI, DoD, United States Postal Inspection Service, and other agencies regularly attend DEF CON.〔〔(【引用サイトリンク】 DEFCON 15 FAQ's )〕 DEF CON was also portrayed in the ''The X-Files'' episode "Three of a Kind" featuring an appearance by The Lone Gunmen. DEF CON was portrayed as a United States government-sponsored convention instead of a civilian convention. == History == DEF CON was founded in 1992 by Jeff Moss as a farewell party for his friend and fellow cracker. The party was planned for Las Vegas a few days before his friend was to leave the United States, because his father had accepted employment out of the country. However, his friend's father left early, taking his friend along, so Jeff was left alone with the entire party planned. Jeff decided to invite all his cracker friends to go to Las Vegas with him and have the party with them instead. Cracker friends from far and wide got together and laid the foundation for DEF CON, with roughly 100 people in attendance. The term DEF CON comes from the movie ''WarGames'', referencing the U.S. Armed Forces defense readiness condition (DEFCON). In the movie, Las Vegas was selected as a nuclear target, and since the event was being hosted in Las Vegas, it occurred to Jeff Moss to name the convention DEFCON. However, to a lesser extent, CON also stands for convention and DEF is taken from the letters on the number 3 on a telephone keypad, a reference to phone phreakers. DEF CON was planned to be a one-time event, a party for his friend, but he kept getting e-mail from people encouraging him to host again the next year. After a while, he was convinced to host the event again, and the attendance nearly doubled the second year. A semi-fictionalized account of DefCon II, "Cyber Christ Meets Lady Luck" written by Winn Schwartau demonstrates some of the early DefCon culture. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「DEF CON」の詳細全文を読む スポンサード リンク
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