I have been getting phone calls from different numbers from men claiming that they work for a computer security company.  Originally they said they worked for Microsoft and then they worked for  Macaphee - I tell them to not phone but they still call. These people also block their number and have links through facebook that will take you to a page that says it is Microsoft and that you will have to call them otherwise your computer will be locked and you will not be able to use your computer. The web page looks official but its not so don't fall for this - they want you to buy a security package starting at $199.