Category - Capture the Flag (CTF)
Capture the flag (CTF) are are challenges that vary in degree of difficulty, and that require participants to exercise different skillsets to solve. Once an challenge is solved, a “flag” is given to the participant and they submit this flag to the CTF server to earn points.
There are different challenges found all over the internet. I usually do the once in Discord. There are also event where you can participate. See the resources tab to find links the Capture the flag challenges and/or events