$ ctf42

🇭🇷 FortID

by TBTL 🇭🇷 Croatia CTFtime flag format FortID{...}

This is the fourth global CTF organized by employees of Blockhouse Technology Zagreb (tbtl.com).

It is also the second incarnation under our brand name - Fort ID (https://fortid.com/) - a privacy-first, secure, and eIDAS 2.0 compliant digital identity solution.

The contest will be in the Jeopardy format, featuring all of the standard categories (web, crypto, rev, pwn, misc, OSINT).

We will have a wide range of challenges, from beginner-friendly ones, all the way to some spicy ones which should hopefully be interesting to seasoned players as well.

For more details and rules, please visit https://ctf.fortid.com/

Archived challenges by category

Editions

EditionWeight WebPwnReverseCryptoMiscOSINT Total
2026 45.00 576565 34
2025 30.00 36674· 26
2024 – 26574· 24
2023 – 1446·· 15