While they're at it, why not just hack the government to reverse last year's election, amirite?
I know most of us loved Mr Robot and watching dinozzo and abby double team a keyboard and Wolverine getting a blowy and all that fun stuff, but that really isn't how things work.
These aren't off the shelf pre-trained models. The model is a big part of the company's product and, increasingly, the cost of training is being partially offloaded to customers under the guise of "tune the model to your data".
And IF we have a Bones situation where someone has inscribed a virus onto human remains to destroy a one of a kind machine or whatever: That is what version control is for. "Hmm. The May 2025 model isn't working. Okay, switch back to April"
Also, these "models" are a lot closer to just running OCR on a feed and logging which traffic camera saw one of the flagged license plates.