Microsoft has confirmed that it signed a driver containing malware, although it stressed the limited real-world security impact.

Microsoft is helping developers use a third-party tool to automate testing of legacy apps in Internet Explorer mode within its Edge browser.

The malicious but properly Microsoft-signed driver was used in an attempt to terminate endpoint-detection agents and antivirus on affected systems from multiple vendors.

Microsoft has now confirmed signing a malicious driver being distributed within gaming environments. This driver, called "Netfilter," is in fact a rootkit that was observed communicating with ...

Microsoft signing keys keep getting hijacked, to the delight of Chinese threat actors What's the point of locks when hackers can easily get the keys to unlock them?

Microsoft digitally signs malicious rootkit driver Company still hasn't revealed the cause of this serious security lapse.