What is CTF?
CTF stands for Capture the Flag. They are competitions to help those in security practice their skills while competing against other security students, enthusiasts, and professionals.
CTFs are computer security/hacking competitions which generally consist of participants breaking, investigating, reverse engineering and doing anything they can to reach the end goal, a “flag” which is usually found as a string of text.
GameOfPWNZ’s Challenge To You!
GameOfPWNZ has created some challenges that you can go try here: https://gameofpwnz.com/?page_id=578