Finally sharing the first of the 5 unreleased projects I’ve been working on 👀 TL;DR: Phalanx, the fully automated AI blue team we built, took 1st place in defense/availability score among all 10 blue teams at APEX 2026. APEX is an international cyber attack & defense exercise jointly conducted by NATO CCDCOE(@ccdcoe) and the Republic of Korea’s National Intelligence Service(NIS). This year, I participated both in developing Phalanx, our AI blue team, and as part of the red team. Phalanx is an AI-based automated blue team system that detects attacks inside a virtual national infrastructure environment and handles response, defense, and recovery with minimal human intervention. It was built over roughly 4 months by a 6-person team made up of ppl from the military, government agencies, and private-sector organizations. We deployed it in the actual exercise, and ended up taking 1st place in system defense/availability score among the 10 blue teams by a pretty wide margin! There was a lot of trial and error along the way, so watching a system we had spent months building actually stop real attacks was honestly a pretty special feeling. I wrote a much more detailed post about it on LinkedIn. (automatic translation is ridiculously good these days, so I just wrote the whole thing in Korean lol) And I still have 4 unreleased projects left 👀 Could be AI, could be vulnerability research. I’m planning to reveal one of them around the end of this year. Turns out there are a lot of fun things to do in security even without grinding CTFs all the time lol. And no, I haven’t quit security yet. I’ll keep posting proof that I’m still alive 😆 lnkd.in/p/gH_ydArc