A security vulnerability was recently discovered in Microsoft Defender, the first-party Windows 11 antivirus tool used by ...

Microsoft’s April 2026 Patch Tuesday fixes 165 vulnerabilities, including two zero-days, in one of the company’s largest ...

A security researcher frustrated with Microsoft has released the BlueHammer Windows zero-day exploit, telling the company, “I ...

The Microsoft Defender Security Research Team has confirmed that a pervasive new authentication code attack is compromising ...

The exploit uses an insecure behavior of Windows Defender and a file API to secure system rights. It is still unpatched.

Microsoft’s latest Patch Tuesday updates fix 165 vulnerabilities, including a SharePoint zero-day that has been exploited in ...

Windows Security (formerly Windows Defender) is the built-in antivirus tool bundled with the operating system. It has saved ...

Microsoft fixes 169 vulnerabilities including exploited SharePoint CVE-2026-32201, prompting CISA remediation by April 28, ...

Today is Microsoft's April 2026 Patch Tuesday with security updates for 167 flaws, including 2 zero-day vulnerabilities.

One of Defender’s bigger advantages is that it’s built directly into Windows. There’s nothing to install and nothing extra to ...

This guide shows configure and deploy Microsoft Defender for Endpoint to better protect your company from cyber threats. By adding your devices, you can find and stop threats faster and keep your ...