What is “Windows has detected serious threats to your security“ – Fake Alert? “Windows has detected serious threats to your security“ is a rogue warning message displayed by malicious Control Center application. A “Your computer is infected! Windows has detected spyware infection!” popup looks like a legitimate security alert from your system tray. But it is fake. Pay no attention to the “Windows has detected serious threats to your security“ popup warnings and do NOT buy the needless software programs. Remove the infection right away and use a reliable anti-spyware software program.