It's not paranoia. Cyber attacks have gone up massively in the past few months even with the weaker models we had so far. And Claude Mythos 5 scores even higher than the unreleased Mythos Preview on ExploitBench. If you made this capability publicly available you would see another acceleration of cyber attacks.

This isn't even about cyber attacks. This is just LLM development which is increasingly just called software development. And at least for cyber it says "Sorry I can't help with that"!