Well, the extent of harm is presumably influenced by how far material is shared, and how publicly, if people are duped by it (such as media covering a deep fake

Well, the extent of harm is presumably influenced by how far material is shared, and how publicly, if people are duped by it (such as media covering a deep fake unaware that it is). Just like existing illegal images are usually only discovered due to people sharing them or being investigated for other things I expect that this would be policed in a similar, somewhat flawed fashion.