Hepp said she didn't know that her photo had been taken, and didn't remember the name or location of the store. She also wasn't aware of how the photo might have made its way online.

The lawsuit calls on the sites to both take down the pictures and pay damages as compensation.

The chances of success aren't high. The Communications Decency Act's contentious Section 230 protects sites against liability for user-uploaded content, including advertisers. Hepp would have to either show that the sites knowingly hosted the photo or target the individuals who uploaded the picture. Most if not all of the sites might be absolved of responsibility. This does illustrate the legal headaches associated with fighting non-consensual photos, though. It's easy for images to spread online, but difficult to hold the perpetrators (or anyone else) to account.