Well, consider revenge porn. A couple shares images or makes videos of themselves, never publicly revealed, only utilized by the person / people who made it, no harm done right?

But then the relationship breaks up and one of the partners publishes the footage. Or their account or device get compromised and the material goes public.

There's a series of new laws with regards to revenge porn, and deepfake porn will likely fall under that category. It's not about whether it stays private, it's the risk of it going public.

I mean this issue isn't anything new either, it's pretty straightforward and common to edit a celebrity's face onto a nude model.