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by lowpro 3302 days ago
In general CTFs are a list of problems you're trying to solve in a set amount of time, ranging from a few hours to a week or so (and some open CTFs are not time bound, just for learning). They will tell you something (normally very, very minimal info or a hint) and you try to find or figure out a string to 'capture the flag' and get the points for that problem. The harder the problem, the more points you get. The person or team with the most points win.

The types of questions range depending on the CTF and the goal of the CTF. Some of things from the OWASP top 10 (1), while others might have logic problems, math problems, or reference problems where you figure out the answer instead of finding it.

1)https://www.owasp.org/index.php/Category:OWASP_Top_Ten_Proje...

See https://en.m.wikipedia.org/wiki/Capture_the_flag under 'software and gaming' for security CTFs