OOO logo

OOO --- DEF CON CTF

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:

Player feedback form


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

Public Sources

github/o-o-overflow

We owe thanks to many people -- some are listed here