Advent of CTF 2025

Every day from December 1st to 25th, solve beginner-oriented gamified cybersecurity challenges. Get familiar with capture-the-flag challenges and cyber concepts from a wide range of popular categories. - Beginner-oriented; challenges get harder as the month progresses - 25 challenges, 6 categories: Web exploitation, Cryptography, Forensics, Binary exploitation, Reverse engineering, Misc. - Hints release for each challenge after 12 and 24 hours; help allowed A new challenge is released every day at 8 pm EST. This is an individual event. Learn more and register at: https://cyberstudents.net/advent/2025/register