is an inventory and search engine of tools and resources about CyberSecurity that aims to help people to find everything related to CyberSecurity.
is a blog talking about Linux and security but is also hosting a lot of challenge write-ups (CTF, TryHackMe, HackTheBox, etc.).
is a lovely Ruby language cheatsheet.
is a website providing TL;DR manual pages and reviews for hacking tools.
is an association organizing a yearly french event about computer security and monthly meetings.