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Best CTF Platforms
I have compiled a list of Red Team/Blue Team Capture The Flag Platforms to test your skills on.
If you want to get involved in the Cybersecurity community then you need to check out these platforms! Save this list for later use.
Attack-Defense
1800+ Labs! Covering Windows Security, Cloud Security, Password Cracking, Reverse Engineering & much more. I highly recommend this platform! (Attack-Defense Link).

CryptoHack
“A fun, free platform for learning modern cryptography” — CryptoHack

CMD Challenge

Exploit Education
“exploit.education provides a variety of resources that can be used to learn about vulnerability analysis, exploit development, software debugging, binary analysis, and general cyber security issues.” — Exploit Education