Jan has a friend who is a model and she's had some embarrassing private photos appear on the net. Leo says that could fall under the revenge porn law, and it could allow her to prosecute them. Most reliable places will take the images down if they had been contacted. If she's having trouble getting them taken down, the sites may be outside the US and it's hard to prosecute across international borders. But in time, that will change.
The chatroom says to go up the chain to the domain registrar or hosting company and approach them for pulling it off. Unfortunately, there are jerks out there and they revel in it.