Singaporean men in naked web cam extortion scam ? The Register

Typically, the women involved contact their victims by sending messages on popular social networking sites, before persuading them to turn things up a notch with a web cam chat.

The extortionists then strip off, encouraging their gullible victims to do the same.

The secretly-filmed clip is then used as blackmail, sometimes uploaded to YouTube and shared with the victim in order to force payment, according to the Straits Times.