https://www.xeus.io/blog Demonstrated attack paths, frontier AI offense, and continuous testing for teams that ship daily. No reprinted advisories. en Mon, 21 Sep 2026 00:00:00 GMT https://www.xeus.io/blog/frontier-ai-pentest-without-mythos-access https://www.xeus.io/blog/frontier-ai-pentest-without-mythos-access Mon, 21 Sep 2026 00:00:00 GMT Claude Mythos is limited to vetted US organizations. What a security lead outside that circle can do now to attack their own estate with frontier-class AI and prove the paths that matter. Frontier AI offense XEUS