We considered this just good discipline. I am sure that IT would have loved to allow just the mirror to have internet access, but it was an active decision not to let it, because it had potential to exfiltrate data out of the development network.
Reading this telling of the story, I can’t help but walk away with the conclusion that these frontier labs lack rigour when it comes to securing their models, especially given how much they hype up their models’ capabilities.
Utterly bizarre.