CDCTF 2025

Crimson Defense CTF 2025 will be held on Saturday, September 20th from 10am to 10pm CDT!

CDCTF is a virtual 12-hour Jeopardy-style Capture-the-Flag competition designed for collegiate-level players. All ability levels are welcome.

This competition will not only provide satisfying challenges for seasoned players, but be a good introduction to CTFs for new ones!

CDCTF is a team competition, you may have up to four participants per team. Universities may have multiple teams representing their school.

There will be challenges of all difficulties representing the following categories: Reverse Engineering, Log & Network Traffic Analysis, Forensics, Password Cracking, Cryptography, Open Source Intelligence, and more!

Registration is open! The link is on our website: https://uacrimsondefense.github.io/cdctf.html

CDCTF is hosted and created by Crimson Defense Cyber Security Club at the University of Alabama.