This blogpost follows up on my previous blogpost (in French). TL;DR Here are the changes coming to the NorthSec CTF for 2027. Read on for an explanation and the details. Teams and individuals will need to register for one of two scoreboards: the regular CTF or the AI CTF. Team size remains unchanged at a maximum of eight people per team. ... continue reading
If you attended the closing ceremony, skip straight to the Feedback Survey section — the first section repeats the same findings. As announced in my previous blogpost, NorthSec allowed AI agents without restriction during the CTF this year. We asked the community to help us out by reporting flags found with AI agents. We also asked participants... continue reading
This text represents my personal opinion, not that of the NorthSec CTF volunteers as a whole. Folks, we need to talk about AI agents and CTFs. In the second half of 2025, AI models and tooling got a lot better. To simplify the writing, “AI agents” here will mean agents that can run commands and/or connect via MCP. It’s now possible for these A... continue reading
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