What is a CTF?
Capture the Flag (CTF) in computer security is an exercise in which “flags” are secretly hidden in purposefully-vulnerable programs or websites. Competitors steal flags either from other competitors (attack/defense-style CTFs) or from the organizers (jeopardy-style challenges). Several variations exist, including hiding flags in hardware devices. Competitions exist both online and in-person, and can be advanced or entry-level. The game is based on the traditional outdoor sport of the same name. >source
What does CCTF mean?
Crypto Currency (is) The Flag and sometimes Crypto CTF (note that there is also a cryptography CTF with that name, so our main brand is CCTF).
Can I play as a beginner?
Yes. Read our guides for help.
Do I need to share my name if I want to play?
How can I contact you?
contact /at/ cryptoctf.org