CtF

Compete in Wargames or Build Challenges

Welcome to Fix the Flag Wargame. AppSec Village is proud to present our DEF CON Contest in partnership with SecDim an AppSec Wargame platform.

2 Ways to Participate

1. Unlike a typical CTF, this contest rewards the players who fix security vulnerabilities. You can choose between secure coding challenges or compete against other players in an Attack & Defence AppSec challenge where you need to secure your app before being given the chance to hack other players’ apps😈.

2. You can also develop your own AppSec challenges! Start by registering here. Challenges are due by July 31, 2026. All approved challenges will be included in the live CTF during AppSec Village @ DEF CON 34.

Winners

There are two categories of winners:

1. The player with the highest total points by the end of the event (August 9 at 11:45 AM PDT)
2. The best contributed challenge submission

The Award Ceremony will be held at 11:50 AM PDT in the AppSec Village on August 9.

Who Can Participate

Whether you are attending DEF CON 34 in person or want to participate remotely, everyone is welcome! This hybrid event spans 2.5 days, from 10 AM - 6 PM PDT on August 7-8, and 10-11:45 AM PDT on August 9.

Prizes

Sponsored by: