HackTricks
Find trick/technique/whatever learnt from CTFs, real life apps, reading researches, and news.
HackTricks is an educational Wiki that compiles knowledge about cyber-security lead by Carlos with hundreds of collaborators! It's a huge collection of hacking tricks that is updated by the community much as possible to keep it up to date. If you find something is missing or outdated, please, send a Pull Request to Hacktricks Github!
HackTricks is also a wiki were a lot of researches also share their latest findings, so it's a great place to keep up to date with the latest hacking techniques.