10-year-old #Windows bug with 'opt-in' fix exploited in 3CX attack https://www.bleepingcomputer.com/news/microsoft/10-year-old-windows-bug-with-opt-in-fix-exploited-in-3cx-attack/ Users have to manually activate the 2013 fix by creating a registry key! (The article shows how.) I did it 2 yr. ago and haven't had any problems on Windows 10 Home. #authenticode #DigitalSignature #security