The last time these Microsoft scammers called, I answered, "IFB, how may I direct your call?" The Indian guy, asked, "Who's this?" "Internet Fraud Bureau, can I assist you?"......CLICK! Also, tell them, I'm sorry, there's no machines that run Microsoft, we have all Apple products. My favorite, Let them start their talk. Ask them do you have the machine ID that's reporting the error. They'll get flustered and say something. Then say to them, I need the unique machine ID, do you realize I supports THOUSANDS of Microsoft systems...CLICK
Definitely spoofed. They get a US phone book, then program their VOIP phones with real phone numbers taken from the book. 95% certain that there is a real Moses Lefkowitz in either Queens or Brooklyn New York now suffering from having his number associated with these creeps.