When they called me they claimed to be from Microsoft and that they were seeing unusual usage of my IP address. Wanted me to turn my computer on and let them help me with this person using my IP..He knew my last name and was a foreigner..He called back and I let my voicemail pick up the call...You could hear lots of them talking and sounded like they were in a large building and echoed..They were laughing about people hanging up and them calling right back and what the person was saying that they called and got a big kick out of it laughing.. I blocked their number.