A hacker could have a great time downloading models from various people's accounts- once they could log in under your own account name. In this respect I think Renderosity has the most LOW TECH security system of any website like it. But RDNA uses Bondware also, and once logged-in, you can freely download a couple of years worth of model purchases! If I was a MERCHANT, all of this would really make me CRINGE at the thought that hackers could be robbing their sales and future income. But the earlier Pop-Up of someone trying to sell computer games might be a clue as to who might be doing this. I have my Norton log of where these attacks are (or appear to be) coming from- (but I'm not posting them here...)