The NSA found a 'severe' security flaw with Microsoft Windows 10, and it's urging all users to do a software update immediately

· The National Security Agency has detected a "severe" security flaw in the Microsoft Windows 10 operating system, the agency announced Tuesday.
· Microsoft acknowledged the flaw and rolled out a security update Tuesday afternoon.
· The flaw hasn't been actively exploited, as far as Microsoft can tell, but all Windows users...