A Dec. 12 posting to Microsoft’s security update guide has confirmed that a Windows Defender vulnerability, rated as critical according to Microsoft itself, could have enabled an attacker who ...

A Black Hat briefing on a now-fixed vulnerability underscores an old lesson: ‘Trust no one.’ LAS VEGAS—The worst thing a malware countermeasure can do is not missing hostile code on a computer–it’s ...

In a proof-of-concept, a security researcher demonstrated how the Windows Security Center API can be used to block the scans by Microsoft’s built-in antivirus tool. Windows Defender can be tricked ...