There are a lot of cases that use social networking site to find the sex scandal victim, sites like tagged, skout, and even msn. It normally upload pretty girls photo and attract guys to add them up, after that they will message you to chat with you and tell you how much they like you. After you fall for it, they will seduce you to send them your naked photo as they are horny and hope to see you naked. At the same time they will send you nude photo to gain your trust, of course it's just the dummy sexy or nude photo they found online. Or some cases they use the real nude photo but without the look, so you can't threaten them.
This happen and one of the guy who fallen for it paid about 100 grand for it, the girl who threaten him get caught at last as they push him too hard and never stop threaten him even after they get the money. Now you know how much your naked photo may worth, and of course if you don't give a damn, you may only leave it and let other admire your naked and pretty body.