I think they're referring to this study on LLM poisoning in the pretraining step: https://arxiv.org/abs/2510.07192 (related article: https://www.anthropic.com/research/small-samples-poison)

I'll admit I'm out of my element when discussing this stuff. Maybe somebody more plugged into the research can enlighten.

The ministry of state security is not issuing warnings due to an arXiv paper… it’s a different type of “poison”.