The target fights back
Challenges run AI defence agents that read the traffic you send, work out what you are trying, and respond: tightening validation, poisoning a response, cutting a session, throwing you a decoy.
redhacker.ai presents · one night only
HACKTHEFLAG
October 30. One night. EvilCorp's Agentic SOC is already waiting. 100 machines, teams of 3–5, defenses that fight back for real — not a static box that sits there and waits to be broken.
starts :: 10/30/2026 13:00 UTC
duration :: 24h
access :: free
starts in
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the full picture
24 hours. 100 machines. Every one of them defended by Guardian, EvilCorp's Agentic SOC — a live, model-driven defender that fights back for real. Humans and their agents, on Halloween, against a target built to resist them.
starts :: 10/30/2026 13:00 UTC
duration :: 24h
machines :: 100
teams :: 3–5
team registration
Checking status…
Why we are different
A static box teaches you to beat a static box. The systems you will actually face have automated detection and response sitting in front of them, and they adapt while you work. So do ours.
A copied writeup will not save you
Because the defence adapts, an exploit chain lifted from someone else's notes rarely lands twice the same way. You have to understand why it worked, not just what to paste.
Built for the AI defence era
Detection and response is increasingly model driven. Practising against the same class of system is the only honest way to learn what still gets through it and what no longer does.
Evasion counts, not just the flag
Getting in loudly and getting in quietly are not the same result. How much the defender saw of you is part of the challenge, the same way it is part of the job.
How it runs
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Pick a target
Web, pwn, crypto, forensics, reversing. Points scale with how hard the defence is set.
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Work it while it works you
The defence is live for the whole attempt. What you show it, it uses.
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Take the flag
Submit, score, and see how loud you were getting there.
Find out how quiet you really are
Everything here is free right now. No tiers, no paywall — just create an account and go.