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 ## Cheetsheets
 
 - [XSS Cheat Sheet - 2018 Edition](https://leanpub.com/xss) - Written by [@brutelogic](https://twitter.com/brutelogic).
+- [Capture the Flag CheatSheet](https://github.com/uppusaikiran/awesome-ctf-cheatsheet#awesome-ctf-cheatsheet-) - Security Cheatsheet.
 
 ## Tools