Discord
CU Boulder / Wednesdays 7โ€“8 PM / DLC 1B20

CU Boulder's club for cybersecurity.

Whether you're new to security or looking to sharpen your skills, you've found a place. Hands-on workshops, CTF competitions, networking, and a community that welcomes any skill level, major, or background.

What is this?

CU Boulder's cyber club. We meet Wednesdays 7โ€“8 PM in DLC 1B20 for topics on information security, offensive and defensive techniques, and competitions. Anyone of any skill level, major, or background is welcome.

82
members ยท 16 active
security ctf policy osint networking cryptography reversing linux hackthebox

Want in?

Join our Discord for the latest events, announcements, and to connect with the community.

Achievements

๐Ÿ†
Team of 7 with no scripts. Worth the chaos.
Nov 2025
๐Ÿ“œ
5th Place - Cyber 9/12 Washington
The CyberBUFFoons placed 5th, and the Tr0j4nBuffs 19th.
March 2025
๐ŸŽ“
Tough ride. Team Zero Dark Nerdy
May 2025
๐Ÿ”ฅ
25th Place - NCL Spring 2024
Team buffal0verflow.
April 2024

Upcoming CTFs

4 Apr
PlaidCTF 2026
Online ยท plaidctf.com
Advanced
10 Apr
NCL Spring 2026
Online ยท nationalcyberleague.org
Beginner
24 Apr
National CCDC 2026
Online ยท nationalccdc.org
Mixed
22 May
DEF CON CTF Qualifier
Online ยท defcon.org
Advanced

Find more

Browse the full CTF calendar on CTFtime.org. Join Discord to coordinate teams before each event.

Sponsors

These organizations support what we do. No strings, no branding requirements โ€” just good people who want to see more of this exist.