There is a new scam going around...you get a phonecall from Microsoft stating that they have detected a problem with your computer. They say they will fix it but need your password to get in. Once you give them the info, they say it will cost you $$$ for them to fix it and want you to send it by Western Union. If you refused, they lock down your computer and you cannot use it.
Microsoft does not contact you by phone or any other means.
If you get this phonecall, IMMEDIATLY HANG UP!!!!