I just checked and I have a second follower (ElizabethThomas5) as of January 15. This is getting frustrating and I don't feel comfortable buying anything else from Renderosity until this problem is fixed. You might consider hiring an expert in cyber security to check your site and see what the problem is. I know you said you don't store credit card information on your site but I'm wondering if these "followers" are able to snatch the credit card information as you are typing it in when you purchase something. There are so many things at Renderosity I would still like to buy but just don't feel comfortable coming here anymore.