Just wanted to comment here: I have been using Opus 4.6, 4.7, and 4.8 just fine to look for Linux kernel vulnerabilities (I'm in the cyber verification program), and it's been fine. I switched to Claude Fable 5, and now I'm getting policy violations.

What's the point of being in the cyber verification program at this point? It looks like I cannot use Fable 5 for vulnerability research.