Microsoft wants Windows 11 owners to stop worrying about buying antivirus software. In statements reported by PCMag and ...

To address this, Microsoft has invested significant effort into Microsoft Defender (formerly Windows Defender), the antivirus ...

Microsoft has announced new features that extend its threat protection portfolio. The company is unifying solutions across Microsoft 365 security and Azure security as part of Microsoft Defender. At ...

Microsoft has introduced a new Microsoft Defender for Endpoint (MDE) feature in public preview to help organizations detect weaknesses affecting Android and iOS devices in their enterprise networks.

Three Defender zero-days exploited since April 10, 2026, enabling privilege escalation and DoS, forcing isolation of affected ...

Microsoft has reaffirmed that Windows 11’s built-in Microsoft Defender Antivirus offers sufficient protection for most users, provided default settings, regular updates, and safe browsing habits are ...

The Microsoft Defender antivirus product built into Windows 10 and 11 is generally good enough at detecting and removing malware that most people don’t need to pay for a separate antivirus product.

Although the team with Microsoft moved swiftly to patch the BlueHammer vulnerability, other exploits still threaten Microsoft ...

Three proof-of-concept exploits are being used in active attacks against Microsoft's built-in security platform; two are ...

Threat actors have been exploiting the BlueHammer Microsoft Defender vulnerability as a zero-day to gain System privileges.

A researcher known as "Chaotic Eclipse" has published a proof-of-concept exploit for a second Microsoft Defender zero-day, ...

Microsoft has confirmed it has fixed the Local Security Authority (LSA) is off issue with a recent update to Defender. The company is also pushing out new kernel-mode hardware stack protection.