CTF will be back at BSidesSF 2025!

How to play?

Our 2025 CTF will kick-off on Friday, April 25th, 4:00pm PDT and wrap-up on Sunday, April 27th, 4:00pm PDT.

In the meantime, you can register on our scoreboard or you can join us on Discord as we count down to launch.

Questions? Email ctf [at] bsidessf.org.

CTF Resources

• Our entry on CTFtime
• CTF 101 blog post by Matir, BSidesSF CTF developer.
• RequestBin to receive requests.
• CyberChef for quick data processing in the browser.
• CTFtime for finding other CTFs to play.