DEF CON (English Wikipedia)

Cassel, David (4 August 2007). "Transcript: Michelle Madigan's run from Defcon". Tech.Blorge.com. Archived from the original on 2007-09-08. Retrieved 2007-08-15.

c-span.org (Global: 2,734^th place; English: 1,606^th place)

"DEF CON Hacking Warns Voting Machines Vulnerability, Oct 10 2017 | C-SPAN.org". C-SPAN.org. Retrieved 2017-12-08.

cbc.ca (Global: 115^th place; English: 82^nd place)

"Russian computer programmer arrested at hacker conference". CBC. 2001-07-19. Retrieved 2024-10-21.

cnet.com (Global: 272^nd place; English: 225^th place)

news.cnet.com

Whitney, Lance. "Defcon to feds: 'We need some time apart'". CNET. July 11, 2013. Retrieved on July 12, 2013. ^{[dead link]}

computerworld.com (Global: 2,429^th place; English: 1,561^st place)

McMillan, Robert (April 2008). "Antivirus Vendors Slam Defcon Virus Contest". IDG News Service. Archived from the original on 2024-03-19. Retrieved 2024-03-19.

crashandcompile.org (Global: low place; English: low place)

"DEF CON Crash and Compile Contest". crashandcompile.org. Retrieved 2024-01-29.

criminalbrief.com (Global: low place; English: low place)

Lundin, Leigh (2008-08-17). "Dangerous Ideas". MBTA v DefCon 16. Criminal Brief. Retrieved 2010-10-07.

cryptome.org (Global: low place; English: low place)

Massachusetts Bay Transit Authority v. Zack Anderson, RJ Ryan, Alessandro Chiesa, and the Massachusetts Institute of Technology (United States District Court District of Massachusetts), Text.

ctftime.org (Global: low place; English: low place)

"CTFtime.org / DEF CON CTF 2022". CTFtime. Retrieved 2024-09-06.
"CTFtime.org / DEF CON CTF 2023". CTFtime. Retrieved 2024-09-06.
"CTFtime.org / DEF CON CTF 2024". CTFtime. Retrieved 2024-09-09.

darpa.mil (Global: low place; English: 7,006^th place)

"Cyber Grand Challenge (CGC) (Archived)". www.darpa.mil. Archived from the original on 2019-06-10. Retrieved 2023-12-20.

ddtek.biz (Global: low place; English: low place)

"Diutinus Defense Technologies Corp. / DC17". ddtek.biz. Retrieved 2023-12-27.
"Diutinus Defense Technologies Corp. / DC18". ddtek.biz. Retrieved 2023-12-27.
"Diutinus Defense Technologies Corp. / Home". ddtek.biz. Retrieved 2023-12-27.
"Diutinus Defense Techonologies Corp. / Home". 2011-05-14. Archived from the original on 2011-05-14. Retrieved 2023-12-21.

defcon.org (Global: low place; English: low place)

defcon.org

"Def Con 1 Archive". Retrieved 2017-04-23.
"Defcon Onion Links". defcon.org.
"DEFCON 15 FAQ's". Retrieved 9 Feb 2011. Lots of people come to DEFCON and are doing their job; security professionals, federal agents, and the press.
Tangent, The Dark. "DEF CON® Hacking Conference – About". www.defcon.org. Retrieved 2016-03-12.
"DEFCON about".
"DEF CON 28 Safe Mode FAQ".
"DEF CON 29 FAQ".
Tangent, The Dark. "DEF CON® Hacking Conference – Black Badge Hall of Fame". www.defcon.org. Retrieved 2016-03-12.
Moss, Jeff. "DEF CON Hacking Conference - Capture the Flag Archive".
vulc@n of DDTek (2023). "A history of Capture the Flag at DEF CON".
"Defcon 9 - Capture The Flag Contest Network". 2001-07-09.
Ghettohackers. "Defcon 10 - Capture the Flag (CTF) contest".
The Ghetto Hackers (June 29, 2003). "Announcing Capture the Flag - Root Fu - Vegas 2003 @ DefCon 11".
"DEF CON Safe Mode archive site".
"DEF CON® Hacking Conference – Show Archives". www.defcon.org. Retrieved 2016-04-09.
""DEF CON Transparency"". August 2018. Retrieved 2018-10-28.
""Voting Machine Hacking Village"" (PDF). September 2017. p. 4. Retrieved 2018-05-17.
"DEF CON 17 FAQ". Retrieved 2018-07-07.

forum.defcon.org

"Def Con 27 Transparency Report - DEF CON Forums". forum.defcon.org. Retrieved 2019-08-17.
"Official forums social group section for DEF CON groups". DEF CON Forums. Retrieved 2023-02-25.
"DEF CON 28 in-person conference is CANCELLED - DEF CON Forums". forum.defcon.org. Retrieved 2020-05-08.
"DEF CON 32 Was Canceled. We Un-Canceled it". Retrieved 2024-02-04.

defconscavhunt.com (Global: low place; English: low place)

"DEF CON Scavenger Hunt". DEF CON Scavenger Hunt. Retrieved 2024-01-29.

deviating.net (Global: low place; English: low place)

"DefCon Beverage Cooling Contraption Contest". deviating.net. Archived from the original on 2024-08-15.

dfiu.tv (Global: low place; English: low place)

"Hacker Jeopardy for DEF CON 28". www.dfiu.tv. Retrieved 2024-01-29.

eff.org (Global: 3,285^th place; English: 2,156^th place)

Jeschke, Rebecca (2008-08-09). "MIT Students Gagged by Federal Court Judge". Press Room. EFF.

forallsecure.com (Global: low place; English: low place)

"Mayhem Wins DARPA CGC". Archived from the original on 2019-02-15. Retrieved 2017-04-24.
"ForAllSecure | Mayhem Security | Application Security". ForAllSecure.

forbes.com (Global: 54^th place; English: 48^th place)

Greenberg, Andy. "Watch Top U.S. Intelligence Officials Repeatedly Deny NSA Spying On Americans Over The Last Year (Videos)." Forbes. June 6, 2013. Retrieved on June 11, 2013. "Eight months later, Senator Ron Wyden quoted[...]"

freebsd.org (Global: 5,469^th place; English: 3,758^th place)

The FreeBSD Project (2011-09-28). "Buffer overflow in handling of UNIX socket addresses".

github.com (Global: 383^rd place; English: 320^th place)

Jordan (2021-04-06), A Brief History of CTF, retrieved 2023-12-20

graytier.com (Global: low place; English: low place)

""Gray Tier Technologies at DEFCON23"". August 2015. Retrieved 2019-09-15.^{[permanent dead link]}

hackfortress.net (Global: low place; English: low place)

"Hackfortress". hackfortress.net. Retrieved 2024-01-29.

imdb.com (Global: 16^th place; English: 23^rd place)

DEFCON: The Documentary at IMDb

legitbs.net (Global: low place; English: low place)

blog.legitbs.net

Unknown. "cLEMENCy - Showing Mercy". Retrieved 2023-12-20.
"DEF CON Capture the Flag Final Scores". blog.legitbs.net.

norton.com (Global: low place; English: low place)

us.norton.com

""Norton at DefCon"". September 2019. Archived from the original on 2020-06-25. Retrieved 2019-09-15.

oooverflow.io (Global: low place; English: low place)

"DEF CON CTF 2018". OOO — DEF CON CTF. Retrieved 2023-12-21.
"OOO — DEF CON CTF". OOO — DEF CON CTF. Retrieved 2023-12-21.
"OOO — DEF CON CTF". OOO — DEF CON CTF. Retrieved 2023-12-21.
"OOO — DEF CON CTF". OOO — DEF CON CTF. Retrieved 2023-12-21.

oreilly.com (Global: 4,347^th place; English: 3,017^th place)

conferences.oreilly.com

"O'Reilly Security Conference in NYC 2017 Defender Awards". conferences.oreilly.com. Retrieved 2017-12-08.

pcworld.com (Global: 1,317^th place; English: 873^rd place)

Constantin, Lucian (2013-08-05). "Will Smith makes unexpected appearance at Defcon hacker conference". PCWorld. Retrieved 2024-10-21.

psifertex.github.io (Global: low place; English: low place)

"A Brief History of CTF". psifertex.github.io. Retrieved 2023-12-20.

racetozero.net (Global: low place; English: low place)

"Race to Zero". Archived from the original on 2011-11-18. Retrieved 2008-06-09. Contest concept.

reddit.com (Global: 1,082^nd place; English: 764^th place)

Moss, Jeff (August 21, 2025). "DC33 Attendance". Reddit. Retrieved September 12, 2025.

researchgate.net (Global: 120^th place; English: 125^th place)

Crispin, Cowan (May 2003). "Defcon Capture the Flag: defending vulnerable code from intense attack". DARPA Information Survivability Conference and Exposition. 2 (2003).

routards.org (Global: low place; English: low place)

routardz. "Defcon 19 CTF - CTF Inside". Retrieved 2023-12-20.

securityfocus.com (Global: low place; English: low place)

Lamos, Rob (31 July 2005). "Exploit writers team up to target Cisco routers". SecurityFocus. Archived from the original on 2012-07-28. Retrieved 2004-07-31.

si.edu (Global: 340^th place; English: 295^th place)

americanhistory.si.edu

"Innovations in Defense: Artificial Intelligence and the Challenge of Cybersecurity". americanhistory.si.edu. 20 April 2017.

slideplayer.com (Global: low place; English: low place)

"4/23/ Immunix & Defcon: Defending Vulnerable Code From Intense Attack Crispin Cowan, Ph.D Seth Arnold, Steve Beattie, Chris Wright WireX and John. - ppt download". slideplayer.com. Retrieved 2023-12-21.

thecyberexpress.com (Global: low place; English: low place)

Khaitan, Ashish (14 September 2023). "Caesars Ransomware Attack, MGM Hit Linked To DEFCON?". Retrieved 12 September 2024.

theguardian.com (Global: 12^th place; English: 11^th place)

Hern, Alex; Levin, Sam (August 4, 2017). "Briton who stopped WannaCry attack arrested over separate malware claims". The Guardian. ISSN 0261-3077. Retrieved August 11, 2017.

thehill.com (Global: 476^th place; English: 282^nd place)

Joe Uchill (July 29, 2017). "Hackers breach dozens of voting machines brought to conference". The Hill. Thehill.com. Retrieved 2 August 2017.

theregister.co.uk (Global: 1,216^th place; English: 797^th place)

"Coronavirus claims new victim: 'DEF CON cancelled' joke cancelled after DEF CON China actually cancelled". The Register.
McAllister, Neil (August 12, 2015). "Is this the most puzzling DEF CON attendee badge yet on record?". The Register UK. Retrieved January 14, 2019.

theregister.com (Global: 3,700^th place; English: 2,360^th place)

Thompson, Ian. "DEF CON is canceled! No, really this time – but the show will go on". The Register. Retrieved 12 September 2024.
Thompson, Ian. "Bomb scare causes mass evacuation at DEF CON". The Register. Retrieved 12 September 2024.

threatpost.com (Global: low place; English: low place)

Fisher, Dennis; Roberts, Paul (August 10, 2011). "Legal Threat Pushes Former HBGary Federal CEO Out Of DEFCON". Business Security. Archived from the original on 2011-08-10.

usatoday.com (Global: 41^st place; English: 34^th place)

Molina, Brett (August 14, 2018). "11-year-old hacks replica of Florida state website, changes election results". USA Today. Retrieved January 14, 2019.

venturebeat.com (Global: 616^th place; English: 430^th place)

Richard Byrne Reilly (2014-08-12). ""Black Hat and Defcon see record attendance — even without the government spooks"". Retrieved 2017-06-07.

vice.com (Global: 175^th place; English: 137^th place)

Oberhaus, Daniel (September 18, 2018). "A History of Badgelife, Def Con's Unlikely Obsession with Artistic Circuit Boards". Vice Motherboard. Retrieved January 14, 2019.

war.gov (Global: low place; English: low place)

Pellerin, Cheryl. "Three Teams Earn Prizes in DARPA Cyber Grand Challenge". U.S. Department of Defense. Retrieved 2024-10-21.

web.archive.org (Global: 1^st place; English: 1^st place)

"DefCon Beverage Cooling Contraption Contest". deviating.net. Archived from the original on 2024-08-15.
"Mayhem Wins DARPA CGC". Archived from the original on 2019-02-15. Retrieved 2017-04-24.
"Diutinus Defense Techonologies Corp. / Home". 2011-05-14. Archived from the original on 2011-05-14. Retrieved 2023-12-21.
"Cyber Grand Challenge (CGC) (Archived)". www.darpa.mil. Archived from the original on 2019-06-10. Retrieved 2023-12-20.
Lamos, Rob (31 July 2005). "Exploit writers team up to target Cisco routers". SecurityFocus. Archived from the original on 2012-07-28. Retrieved 2004-07-31.
Cassel, David (4 August 2007). "Transcript: Michelle Madigan's run from Defcon". Tech.Blorge.com. Archived from the original on 2007-09-08. Retrieved 2007-08-15.
"Race to Zero". Archived from the original on 2011-11-18. Retrieved 2008-06-09. Contest concept.
McMillan, Robert (April 2008). "Antivirus Vendors Slam Defcon Virus Contest". IDG News Service. Archived from the original on 2024-03-19. Retrieved 2024-03-19.
Fisher, Dennis; Roberts, Paul (August 10, 2011). "Legal Threat Pushes Former HBGary Federal CEO Out Of DEFCON". Business Security. Archived from the original on 2011-08-10.
Wagenseil, Paul. "Hackers Don't Believe NSA Chief's Denial of Domestic Spying." (Archive) NBC News. August 1, 2012. Retrieved on June 13, 2013.
Winn Schwartau. "Cyber Christ Meets Lady Luck" (PDF). Archived from the original (PDF) on 18 July 2011. Retrieved 9 Feb 2011.
""Norton at DefCon"". September 2019. Archived from the original on 2020-06-25. Retrieved 2019-09-15.

wikidata.org (Global: 43^rd place; English: 161^st place)

DEFCON: The Documentary at IMDb

winnschwartau.com (Global: low place; English: low place)

Winn Schwartau. "Cyber Christ Meets Lady Luck" (PDF). Archived from the original (PDF) on 18 July 2011. Retrieved 9 Feb 2011.

wired.com (Global: 193^rd place; English: 152^nd place)

wired.com

Newman, Lily Hay. "Defcon is Cancelled". Wired.
Zetter, Kim. "Malicious ATM Catches Hackers". Wired – via www.wired.com.
Newman, Lily Hay. "Defcon Is Canceled". Wired. ISSN 1059-1028. Retrieved 2023-02-25.

blog.wired.com

Zetter, Kim (3 August 2007). "Dateline Mole Allegedly at DefCon with Hidden Camera – Updated: Mole Caught on Tape". Wired Blog Network. Retrieved 2007-08-15. According to DefCon staff, Madigan had told someone she wanted to out an undercover federal agent at DefCon. That person in turn warned DefCon about Madigan's plans. Federal law enforcement agents from FBI, DoD, United States Postal Inspection Service and other agencies regularly attend DefCon to gather intelligence on the latest techniques of hackers.

worldcat.org (Global: 5^th place; English: 5^th place)

search.worldcat.org

Hern, Alex; Levin, Sam (August 4, 2017). "Briton who stopped WannaCry attack arrested over separate malware claims". The Guardian. ISSN 0261-3077. Retrieved August 11, 2017.
Newman, Lily Hay. "Defcon Is Canceled". Wired. ISSN 1059-1028. Retrieved 2023-02-25.

x.com (Global: low place; English: low place)

@VotingVillageDC (6 March 2018). "WOW! Congrats to the @defcon Team, recently honored for its innovative #VotingVillage concept & the continued debat…" (Tweet) – via Twitter.

youtube.com (Global: 9^th place; English: 13^th place)

Jeff Moss (July 30, 2007). The Story of DEFCON. Retrieved 9 Feb 2011.
A Brief History of CTF - Jordan Wiens. 2018-03-28. Event occurs at 35:41.

zdnet.com (Global: 786^th place; English: 558^th place)

Blue, Violet. "Feds 'not welcome' at DEF CON hacker conference". ZDNet. July 11, 2013. Retrieved on July 11, 2013.

DEF CON (English Wikipedia)

aerospacevillage.org (Global: low place; English: low place)

bbc.co.uk (Global: 8th place; English: 10th place)

news.bbc.co.uk

blackhat.com (Global: low place; English: low place)

blorge.com (Global: low place; English: low place)

tech.blorge.com

c-span.org (Global: 2,734th place; English: 1,606th place)

cbc.ca (Global: 115th place; English: 82nd place)

cnet.com (Global: 272nd place; English: 225th place)

news.cnet.com

computerworld.com (Global: 2,429th place; English: 1,561st place)

crashandcompile.org (Global: low place; English: low place)

criminalbrief.com (Global: low place; English: low place)

cryptome.org (Global: low place; English: low place)

ctftime.org (Global: low place; English: low place)

darpa.mil (Global: low place; English: 7,006th place)

ddtek.biz (Global: low place; English: low place)

defcon.org (Global: low place; English: low place)

defcon.org

forum.defcon.org

defconscavhunt.com (Global: low place; English: low place)

deviating.net (Global: low place; English: low place)

dfiu.tv (Global: low place; English: low place)

eff.org (Global: 3,285th place; English: 2,156th place)

forallsecure.com (Global: low place; English: low place)

forbes.com (Global: 54th place; English: 48th place)

freebsd.org (Global: 5,469th place; English: 3,758th place)

github.com (Global: 383rd place; English: 320th place)

graytier.com (Global: low place; English: low place)

hackfortress.net (Global: low place; English: low place)

imdb.com (Global: 16th place; English: 23rd place)

legitbs.net (Global: low place; English: low place)

blog.legitbs.net

norton.com (Global: low place; English: low place)

us.norton.com

oooverflow.io (Global: low place; English: low place)

oreilly.com (Global: 4,347th place; English: 3,017th place)

conferences.oreilly.com

pcworld.com (Global: 1,317th place; English: 873rd place)

psifertex.github.io (Global: low place; English: low place)

racetozero.net (Global: low place; English: low place)

reddit.com (Global: 1,082nd place; English: 764th place)

researchgate.net (Global: 120th place; English: 125th place)

routards.org (Global: low place; English: low place)

securityfocus.com (Global: low place; English: low place)

si.edu (Global: 340th place; English: 295th place)

americanhistory.si.edu

slideplayer.com (Global: low place; English: low place)

thecyberexpress.com (Global: low place; English: low place)

theguardian.com (Global: 12th place; English: 11th place)

thehill.com (Global: 476th place; English: 282nd place)

theregister.co.uk (Global: 1,216th place; English: 797th place)

theregister.com (Global: 3,700th place; English: 2,360th place)

threatpost.com (Global: low place; English: low place)

usatoday.com (Global: 41st place; English: 34th place)

venturebeat.com (Global: 616th place; English: 430th place)

vice.com (Global: 175th place; English: 137th place)

war.gov (Global: low place; English: low place)

web.archive.org (Global: 1st place; English: 1st place)

wikidata.org (Global: 43rd place; English: 161st place)

winnschwartau.com (Global: low place; English: low place)

wired.com (Global: 193rd place; English: 152nd place)

wired.com

blog.wired.com

worldcat.org (Global: 5th place; English: 5th place)

search.worldcat.org

x.com (Global: low place; English: low place)

youtube.com (Global: 9th place; English: 13th place)

zdnet.com (Global: 786th place; English: 558th place)

bbc.co.uk (Global: 8^th place; English: 10^th place)

c-span.org (Global: 2,734^th place; English: 1,606^th place)

cbc.ca (Global: 115^th place; English: 82^nd place)

cnet.com (Global: 272^nd place; English: 225^th place)

computerworld.com (Global: 2,429^th place; English: 1,561^st place)

darpa.mil (Global: low place; English: 7,006^th place)

eff.org (Global: 3,285^th place; English: 2,156^th place)

forbes.com (Global: 54^th place; English: 48^th place)

freebsd.org (Global: 5,469^th place; English: 3,758^th place)

github.com (Global: 383^rd place; English: 320^th place)

imdb.com (Global: 16^th place; English: 23^rd place)

oreilly.com (Global: 4,347^th place; English: 3,017^th place)

pcworld.com (Global: 1,317^th place; English: 873^rd place)

reddit.com (Global: 1,082^nd place; English: 764^th place)

researchgate.net (Global: 120^th place; English: 125^th place)

si.edu (Global: 340^th place; English: 295^th place)

theguardian.com (Global: 12^th place; English: 11^th place)

thehill.com (Global: 476^th place; English: 282^nd place)

theregister.co.uk (Global: 1,216^th place; English: 797^th place)

theregister.com (Global: 3,700^th place; English: 2,360^th place)

usatoday.com (Global: 41^st place; English: 34^th place)

venturebeat.com (Global: 616^th place; English: 430^th place)

vice.com (Global: 175^th place; English: 137^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

wikidata.org (Global: 43^rd place; English: 161^st place)

wired.com (Global: 193^rd place; English: 152^nd place)

worldcat.org (Global: 5^th place; English: 5^th place)

youtube.com (Global: 9^th place; English: 13^th place)

zdnet.com (Global: 786^th place; English: 558^th place)