That is true only if you’re one of the millions who have updated your operating system to Windows 10. Even Windows 7 and 8. The fix is available for Windows Vista SP2, Windows 7, Windows 8.1, Windows RT 8.1, Windows 10, Windows Server 2008 SP2, Windows Server 2008 R2 SP1, Windows Server 2012 and 2012 R2, Windows Server 2016, and Server Core.
A month after the update from Microsoft, Dan Tentler, a security researcher and the founder of security shop Phobos Group, began noticing a sharp uptick in the DoublePulsar. “The reason we’re experiencing this massive outbreak is because nobody patches,” Tentler told NBC. Another organization, Binary Edge, also saw infections jump from 106,410 machines to 183,107 in four days from Friday, April 21 through Monday April 24.