The Dutch Ministry of Justice launched a viral campaign to create awareness around the possible negative effects of sharing too much content online.
They created this video and let it loose on Hyves, the biggest Dutch social network. This is really well done, here you see the video from my perspective (using my Hyves credentials).
The language they speak is russian, but you’ll get the point. Once it is done you can select some of your friends in Hyves to send a simular personalised cyber maffia video too (hence the viral effect).