CTF, Training

• CPTC – Global Collegiate Penetration Testing Competition focuses on training and evaluating the activities teams are likely to perform during a real-world penetration testing engagement.
• FBCTF – Facebook Capture the Flag
• Hackflag – Brazilian Hackflag
• Hacking-LAB – Hacking-Lab is an online ethical hacking, computer network and security challenge platform, dedicated to finding and educating cyber security talents.
• HackTheBox – Pen-testing Labs
• Over The Wire – The wargames offered by the OverTheWire community can help you to learn and practice security concepts in the form of fun-filled games.
• BetterMotherFucking CTF – MotherfuckingCTF inspired platform. But better.
• Open Security Training – OpenSecurityTraining.info is dedicated to sharing training material for computer security classes, on any topic, that are at least one day long.
• Pwnable.kr – ‘pwnable.kr’ is a non-commercial wargame site which provides various pwn challenges regarding system exploitation.
• Trailofbits Github – CTF Field Guide