There is literally no protection or difference of an opensource model doing this.

An actual objection I had while talking to an aerospace company was they don't want opensource models because the threat of it having a poisoned training example on specific systems.

It's easily the most hidden malware possible, completely undetectable until an exact set of tokens unlocks it. Is it line 100,543 of your security product? You will literally not know until it plants it in there.