picoCTF

Cybersecurity · Watching · Organiser: Carnegie Mellon University · CyLab

One of the world's largest online CTFs, with tasks of rising difficulty in cryptography, web, forensics, reverse engineering and binary exploitation. Past tasks stay open all year on picoGym.

Who can take part?

Free and open to everyone; prize eligibility is set in each edition's rules.

How to prepare

Start with easy picoGym tasks from each category and practise the Linux command line and small Python scripts. Form a club CTF team.

Official page · All competitions

Last checked: 2026-11-03