The BSides København 2021 CTF was hosted online in the Haaukins platform.

The CTF included both offensive and defensive elements and ran for 24 hours, from Friday 17 September at 16:00 to Saturday 18 September at 16:00.

On top of the traditional offensive challenges, you had the opportunity to analyze code, find vulnerabilities, and fix these vulnerabilities in defensive tasks.

If you wish to try development of your own defensive CTF challenges, then you are very welcome to use this as a starting point or PoC: https://github.com/Sythnog/DefensiveCTFChalTemplate… Thanks to @sythnog and team for creating it and sharing with the community!

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