If you're saying that "non-determinism" is a term of art in the field of security, meaning something different than the ordinary meaning, I wasn't aware of that at least. Do you have a source? I searched for uses and found https://crypto.stackexchange.com/questions/95890/necessity-o... and https://medium.com/p/641f061184f9 and these seem to both use the ordinary meaning of the term. Note that an LLM with temperature fixed to zero has the same security risks as one that doesn't, so I don't understand what the poster is trying to say by "we have to treat LLMs as non-deterministic".