Greetings and Salutations:
The registration submission form is now live! For those folks that are planning to create unofficial badges for this years DEFCON, please click the link below and provide the requested information. If you do not have all of the information requested, it is fine. Please...
Forums
Topics
Posts
Last Post
Sub-Forums:
Sub-Forums:
DEF CON Groups are local meetings of people between interested in technology and hacking Listing
Topics: 117
Posts: 316
Last Post:
117
Topics
316
Posts
February 19, 2026
Last Post
Sub-Forums:
Sub-Forums:
The HardenedBSD Project is a clean-room reimplementation of the grsecurity patchset for the wider BSD community. (site https://hardenedbsd.org/)
Topics: 44
Posts: 60
Last Post:
44
Topics
60
Posts
March 4, 2026
Last Post
Community of people helping build an archive of security conferences, podcasts, training, and more
Topics: 29
Posts: 170
Last Post:
29
Topics
170
Posts
January 27, 2026
Last Post
Conversations and the latest Policy developments impacting technology and securing our digital society
Topics: 115
Posts: 210
Last Post:
115
Topics
210
Posts
July 28, 2025
Last Post
Sub-Forums:
Conference Archives
Archives of past planning and forum conversations, still open but not very active.
Sub-Forums:
DEF CON 26 Archive
(877/5,319)
DEF CON 25 Archive
(106/560)
DEF CON 24 Archive
(211/932)
DEF CON 23 Archive
(213/1,507)
DEF CON 22 Archive
(235/1,432)
DEF CON 21 Archive
(289/2,219)
DEF CON 20 Archive
(284/2,586)
DEF CON 19 Archive
(385/3,719)
DEF CON 18 Archive
(355/3,304)
DEF CON 17 Archive
(289/3,792)
DEF CON 16 Archive
(275/2,693)
DEF CON 15 Archive
(302/3,250)
DEF CON 14 Archive
(375/3,937)
DEF CON 13 Archive
(255/3,903)
DEF CON 12 Archive
(172/3,507)
DEF CON 11 Archive
(244/4,976)
DEF CON 10 Archive
(396/6,746)
DEF CON 9 Archive
(4/4)
DEF CON 8 Archive
(2/2)
DEF CON 7 Archive
(2/4)
DEF CON 6 Archive
(1/1)
DEF CON 5 Archive
(1/1)
DEF CON 4 Archive
(1/1)
DEF CON 3 Archive
(1/3)
DEF CON 2 Archive
(1/1)
DEF CON 1 Archive
(1/5)
Sub-Forums:
U.S. Inactive DEF CON Groups
(320/925)
DEF CON Groups Announcements
(28/59)
Past DEF CON Forum Content
Discussion of content from past Defcons such as video feeds and audio feeds and an archive of forum discussions
Topics: 4,735
Posts: 49,433
4,735
Topics
49,433
Posts
October 28, 2017
Last Post
Sub-Forums:
(old) Community Talk
(3,960/45,375)
The Rules (Old)
(9/13)
Photo/Image Discussion
(35/190)
Speaker s Corner
(9/30)
Value Added News Discussion
(67/790)
Fucktard Hall
(94/374)
Local Meetings & Other Events
(560/2,660)
There are currently 1524 users online. 4 members and 1520 guests.
Most users ever online was 35,885 at 06:47 on January 5, 2025.
-
1 day ago