Editing DEF CON (section)

==Venues, dates, and attendance==
Each conference venue and date has been extracted from the DEF CON archives for easy reference.<ref>{{Cite web|url=https://www.defcon.org/html/links/dc-archives.html|title=DEF CON® Hacking Conference – Show Archives|website=www.defcon.org|access-date=2016-04-09}}</ref>
{| class="wikitable sortable"
!Conference Name
!Venue
!Duration
!Year
!Attendance
|-
|DEF CON 33
|[[Las Vegas Convention Center]]
|August 7–10
|2025
|N/A
|-
|DEF CON 32
|[[Las Vegas Convention Center]], and [[Sahara Las Vegas|The Sahara]]<ref>{{Cite web|url=https://forum.defcon.org/node/248360|title=DEF CON 32 Was Canceled. We Un-Canceled it.|access-date=2024-02-04}}</ref>
|August 8–11
|2024
|N/A
|-
|DEF CON 31
|[[Caesars Forum]], [[Flamingo Las Vegas|Flamingo]], [[Harrah's Las Vegas|Harrah's Hotel]], and [[The LINQ Hotel & Casino|Linq Hotel]]
|August 10–13
|2023
|~25,000{{Citation needed|date=September 2023}}
|-
|DEF CON 30
|[[Caesars Forum]], [[Flamingo Las Vegas|Flamingo]], [[Harrah's Las Vegas|Harrah's Hotel]], and [[The LINQ Hotel & Casino|Linq Hotel]]
|August 11–14
|2022
|~25,000{{Citation needed|date=September 2023}}
|-
|DEF CON 29
|[[Paris Las Vegas|Paris Hotel]] and [[Bally's Las Vegas|Bally's Hotel]]
|August 5–8
|2021
|~8,700{{Citation needed|date=September 2023}}
|-
|DEF CON Safe Mode
|[[Virtual event]]
|August 6–9
|2020
|N/A
|-
|DEF CON 28
|Planned [[Caesars Forum]], [[Harrah's Las Vegas|Harrah's]], [[The Linq]], and [[Flamingo Las Vegas|Flamingo]]
|August 6–9
|2020
|0<ref>{{Cite magazine |last=Newman |first=Lily Hay |title=Defcon Is Canceled |language=en-US |magazine=Wired |url=https://www.wired.com/story/defcon-is-canceled/ |access-date=2023-02-25 |issn=1059-1028}}</ref>
|-
|DEF CON 27
|[[Paris Las Vegas|Paris Hotel]], [[Bally's Las Vegas|Bally's Hotel]], [[Planet Hollywood Las Vegas|Planet Hollywood]], and [[Flamingo Las Vegas|Flamingo]]
|August 8–11
|2019
|~30,000<ref name="forum.defcon.org"/>
|-
|DEF CON China 1.0
|[[798 Art Zone|751 D-Park]]
|May 31–June 2
|2019
|Unknown
|-
|DEF CON 26
|[[Caesars Palace]] and [[Flamingo Las Vegas|Flamingo]]
|August 9–12
|2018
|28,000<ref name=dc-transparency>{{cite web|url=https://www.defcon.org/html/links/dc-transparency.html|title="DEF CON Transparency"|date=August 2018|access-date=2018-10-28}}</ref>
|-
|DEF CON China [Beta]
|Kuntai Hotel ([[Beijing]])
|May 11–13
|2018
|Unknown
|-
|DEF CON 25
|[[Caesars Palace]]
|July 27–30
|2017
|25,000<ref name=voting_village_dc25>{{cite web|url=https://www.defcon.org/images/defcon-25/DEF%20CON%2025%20voting%20village%20report.pdf|title="Voting Machine Hacking Village"|date=September 2017|access-date=2018-05-17|page=4}}</ref>
|-
|DEF CON 24
|[[Paris Las Vegas|Paris Hotel]] and [[Bally's Las Vegas|Bally's Hotel]]
|August 4–7
|2016
|22,000<ref name=Norton_at_DefCon>{{cite web|url=https://us.norton.com/internetsecurity-emerging-threats-norton-at-defcon.html|title="Norton at DefCon"|date=September 2019|access-date=2019-09-15}}</ref>
|-
|DEF CON 23
|[[Paris Las Vegas|Paris Hotel]] and [[Bally's Las Vegas|Bally's Hotel]]
|August 6–9
|2015
|16,000+<ref name=graytier>{{cite web|url=https://graytier.com/blog/gray-tier-technologies-at-defcon23/|title="Gray Tier Technologies at DEFCON23"|date=August 2015|access-date=2019-09-15}}{{Dead link|date=October 2022 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
|-
|DEF CON 22
|[[Rio All-Suite Hotel and Casino|Rio Hotel & Casino]]
|August 7–10
|2014
|16,000<ref name=venturebeat_dc22>{{cite web|url=https://venturebeat.com/2014/08/12/black-hat-and-defcon-see-record-attendance-and-thats-not-even-counting-the-spies/|author=Richard Byrne Reilly|title="Black Hat and Defcon see record attendance — even without the government spooks"|date=2014-08-12|access-date=2017-06-07}}</ref>
|-
|DEF CON 21
|[[Rio All-Suite Hotel and Casino|Rio Hotel & Casino]]
|August 1–4
|2013
|12,000<ref name="venturebeat_dc22" />
|-
|DEF CON 20
|[[Rio All-Suite Hotel and Casino|Rio Hotel & Casino]]
|July 26–29
|2012
|Unknown
|-
|DEF CON 19
|[[Rio All-Suite Hotel and Casino|Rio Hotel & Casino]]
|August 4–7
|2011
|Unknown
|-
|DEF CON 18
|[[Riviera (hotel and casino)|Riviera Hotel & Casino]]
|July 30–August 1
|2010
|Unknown
|-
|DEF CON 17
|[[Riviera (hotel and casino)|Riviera Hotel & Casino]]
|July 30–August 2
|2009
|Unknown
|-
|DEF CON 16
|[[Riviera (hotel and casino)|Riviera Hotel & Casino]]
|August 8–10
|2008
|8,000<ref name=defcon_dc17>{{cite web|url=https://www.defcon.org/html/defcon-17/dc-17-faq.html|title=DEF CON 17 FAQ|access-date=2018-07-07}}</ref>
|-
|DEF CON 15
|[[Riviera (hotel and casino)|Riviera Hotel & Casino]]
|August 3–5
|2007
|Unknown
|-
|DEF CON 14
|[[Riviera (hotel and casino)|Riviera Hotel & Casino]]
|August 4–6
|2006
|Unknown
|-
|DEF CON 13
|[[Alexis Park|Alexis Park Resort]]
|July 29–31
|2005
|Unknown
|-
|DEF CON 12
|[[Alexis Park|Alexis Park Resort]]
|July 30–August 1
|2004
|Unknown
|-
|DEF CON 11
|[[Alexis Park|Alexis Park Resort]]
|August 1–3
|2003
|Unknown
|-
|DEF CON 10
|[[Alexis Park|Alexis Park Resort]]
|August 2–4
|2002
|Unknown
|-
|DEF CON 9
|[[Alexis Park|Alexis Park Resort]]
|July 13–15
|2001
|Unknown
|-
|DEF CON 8
|[[Alexis Park|Alexis Park Resort]]
|July 28–30
|2000
|Unknown
|-
|DEF CON 7
|[[Alexis Park|Alexis Park Resort]]
|July 9–11
|1999
|Unknown
|-
|DEF CON 6
|[[Plaza Hotel & Casino]]
|July 31–August 2
|1998
|Unknown
|-
|DEF CON 5
|[[Planet Hollywood Las Vegas|Aladdin Hotel & Casino]]
|July 11–13
|1997
|Unknown
|-
|DEF CON 4
|[[Park MGM|Monte Carlo Resort and Casino]]
|July 26–28
|1996
|Unknown
|-
|DEF CON 3
|[[Tropicana Las Vegas|Tropicana Resort & Casino]]
|August 4–6
|1995
|Unknown
|-
|DEF CON 2
|[[SLS Las Vegas|Sahara Hotel and Casino]]
|July 22–24
|1994
|~200
|-
|DEF CON 1
|[[Sands Hotel and Casino]]
|June 9–11
|1993
|~100
|}