Writeups from Capture the Flag (CTF) events I participated in. About web, scripting, crypto, reversing and everything in between. All writeups include detailed explanations of how everything works.
A Dutch CTF event with a Training Mission to practice, and a real CTF after. Part of the European Cyber Security Challenge. The challenges were all high quality and good learning material
22 April is International Earth Day and guess what… The Earth was hacked by malicious extraterrestrials. Their ultimate plan is to seize control of our planet. It's only you who can save us from this terrible fate.