Welcome, hackers of all ages.
With quals completed, stay tuned for info on finals.
Quals are finished, congrats A*O*E!
Chat on DEF CON's official discord (CTF area)
We’re starting to release data and code:
- The scoreboard is static, but does validate flags.
- We began releasing code [info]
- Pcaps and internal scoreboard data are also available.
- Check out Sirgoon and our friends at Hack-A-Sat, who provided guest challenge interrupted.
Who are we?
Follow @oooverflow on Twitter for updates!
DEF CON CTFs
- DEF CON CTF 2020 Finals –> stay tuned for updates
- DEF CON CTF 2020 Quals
- DEF CON CTF 2019 Finals
- DEF CON CTF 2019 Quals
- DEF CON CTF 2018 Finals
- DEF CON CTF 2018 Quals
We owe thanks to many people -- some are listed here