Microsoft has warned users about a new ‘ransomware’ scam in which hackers are using pop-up notifications pretending to be from law enforcement agencies in order to extort money from users.
In a blog post Microsoft informed that the scam was quite elaborate as it was localised in several languages including English, Spanish, German, and Dutch.
http://www.itproportal.com/2011/12/22/microsoft-aterts-users-about-new-ransomware-posing-police/