Solve real security challenges in your browser. No downloads, no setup — just you and the challenge.
How missions work: Each mission is a short game. Follow the clues, finish the task, and capture the flag. Every mission is 100% legal training — you only ever play on training systems, never on real accounts or real websites. A new mission is added every 3–4 days.
Mission points count: every mission you finish adds its points to your leaderboard score — saved in your browser only. Finish all 5 missions for 1,300 points.