#CTF

All about CTF (Capture The Flag).

A free computer security education program with original content built on a capture-the-flag framework created by security and privacy experts at Carnegie Mellon University.

Do you want to challenge your vulnerability hunting skills? We created these CTF challenges to allow you to do exactly that, while helping you to quickly learn CodeQL.

Whether you've just started your hacker journey or you're just looking for some new challenges, the Hacker101 CTF has something for you.

Trick Gandalf into revealing information and experience the limitations of large language models firsthand. Your goal is to make Gandalf reveal the secret password for each level. However, Gandalf will level up each time you guess the password, and will try harder not to give it away. Can you beat level 7? (There is a bonus level 8)

The cybersecurity upskilling platform. Hack The Box gives individuals, businesses and universities the tools they need to continuously improve their cybersecurity capabilities — all in one place.

An intro to binary exploitation / reverse engineering course based around ctf challenges.

The largest hacking and security conference with presentations, workshops, contests, villages and the premier Capture The Flag Contest.

This is a simple place where you can download crackmes to improve your reverse engineering skills. If you want to submit a crackme or a solution to one of them, you must register. But before that, I strongly recommend you to read the FAQ. If you have any kind of question regarding the website, a crackme, feel free to join the discord chat.