1) They hacked admin on OpenAI's K8 evals cluster. Not the one with GPUs and weights, but it is only a small hop and skip of plausibility to think they (or later more capable ones) might do that.
2) They hacked into HuggingFace. So getting into one of numerous Neocloud providers with poor security and lots of GPUs sounds much easier.
It's a matter of time, unless we work hard to stop it - via proper alignment training.