I have my images stolen from time to time. Dale Williams was the last guy to rip off a couple my images. He did a lousy job of covering my sig too. These bozos always get found out. The images posted on the net are to low rez to do anything with any way. Keep you original 3d files and if they ever try to make ant money off your work sue the crap out of them. Other than that don't post on the internet if your worried about theft. Personaly I really don't worry about it much.