Or pass a piece of paper or splayed fingered hand slowly in front of your face?

> The only way around this is to crop the input video quite heavily

I mean that sounds a lot easier than making deep fakes work well with profile data surely?

Ask the caller to move their hand in front of the camera so the hand fully obstructs the view, and then slowly slide the hand to the side until it completely moves out of the view. Crop-resistant!

Until tech improves to fix this too. Detecting ai-generated content is a fool's errand since that is literally how they get better.

It's only a fool's errant if you give up. If you don't give up, then it's a cat-and-mouse game. Forever outsmarting the other, but neither side winning permanently.

I don't think that's very robust. The entire image could easily be fake, as the face is fake, and people already have fake backgrounds. If the entire image is fake, there's no reason for the actual camera's view to match the fake image, so a wider angle camera would keep you in view as you move, and the system could generate a tighter fake view.