That's intellectual property. That's a copyright issue right there. As a photographer, when you take photos, you have a model release form. These are all contractual issues that would arise. If someone doesn't have your permission to use the material, then that is a digital copyright infringement. That's an artistic thing. It's exactly the same as if someone were to host any artistic content anywhere without the permission of the artist. It's very similar to that.
Again, we have the Copyright Act for that.