Welcome, hackers of all ages.
With quals completed, stay tuned for info on finals.
Quals are finished, congrats A*O*E!
Scoreboard | Info
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?
We are the Order of the Overflow. We are the current host of DEF CON CTF (Quals and Finals). Read about our philosophy here or reach us at team@oooverflow.io.
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
Public Sources
We owe thanks to many people -- some are listed here