This is rampant now and continues because there is no one willing to move forward legally. The best way to avoid is to water mark your images to say something like "Not pro Back page or Not A Monkey____ Advertiser" (whatever the name) . This is a classy way of protecting your brand. Last year a site named Adult fax went down. My profile had some other girls link attached that was not mine nor my images. When unasked them to remove and I proved who I was, they'd take down then put the link up again. So she had access to my review too. When I asked them to remove my profile they refused. They were getting sloppy and very biased for clients who were trashing girls regularly. Then they went offline and threads on Reddit appeared to expose the site for being an agency that also stole girls photos.
I contacted over 30 providers and told them and some in turn wrote the site. It's very important to have support within our circle.