CTF Resource https://github.com/apsdehal/awesome-ctf?fbclid=IwAR1fU87SSySna99Xqny07IcySKKiRgAIwn1St02-wLDQSEwtfRqdf1DkQt8 All https://www.root-me.org/?lang=en https://overthewire.org/wargames/ https://ctflearn.com/dashboard https://www.hackthebox.eu/ https://picoctf.org/ PWN https://cse466.pwn.college/ https://exploit-exercises.lains.space/protostar/ http://pwnable.kr/ https://pwnable.tw/challenge/ RE http://reversing.kr/ Web http://websec.fr/ http://www.itsecgames.com/ https://xss.pwnfunction.com/ Crypto https://cryptohack.org/ https://cryptopals.com/ Blockchain https://ethernaut.openzeppelin.com/ Interview https://www.quora.com/q/techiedelight/500-Data-Structures-and-Algorithms-interview-questions-and-their-solutions?utm_source=j2team&utm_medium=url_shortener&fbclid=IwAR3XG68nCBBZeBEVncyYSkjwXQXk5mBJSIEl3UWCTLtUfCPFz-yk0moHbAw