Capture the Flag - Hackers World
Capture the Flag - digital game, challenge, competition and continuous process....
Hacker 
Capture the Flag (CTF) is a cybersecurity competition used to test and develop computer security skills.
CTF platforms are a favorite environment for hackers, where it is possible to refine and explore methods of eliminating imagined and real cyber incidents, penetration, security, information leakage and so on.
By training on this platform, a person hones his skills in cyber security, hacking, programming and security such as:
Hacking, leaking, engineering, reversing, cryptography, operating systems and many other areas.
Here are the best CTF platforms available today:
