Data Collection
Transparency about what we collect and why, plus file download safety notes.
Why we collect username & country
Username identifies you on leaderboards. Country is used to provide country-specific rankings.
Your username is intended to be permanent for competitive integrity. Choose carefully.
Challenge activity data
We store challenge submissions, solves, points, streaks, and earned badges to operate the platform and prevent cheating.
Downloads (ZIP / files) safety
Some challenges include downloadable files (forensics data, archives, etc.). We aim to provide files that are safe and tested.
Files are provided for learning and CTF gameplay only.
Treat all challenge files as untrusted and analyze in a safe environment when possible.
If you believe a provided file is unsafe beyond intended challenge design, report it to the platform administrator.