Over the weekend, security researcher Abdelhamid Naceri (also known as Nightmare Eclipse) released another Microsoft Defender zero-day exploit that blocks antivirus updates.

Learn how to update Windows Defender in Windows 11 and Windows 10 quickly and easily! In this step-by-step tutorial, I'll show you how to manually update Microsoft Defender Antivirus, install the ...

With October's Patch Tuesday, Microsoft fixed over 1,000 flaws in a single month for the first time. One flaw is already ...

Microsoft has resolved a known issue that causes incorrect alerts warning that Defender Antivirus was turned off after installing recent updates.

Hackers abuse Microsoft Defender exclusions to hide malware from scans, sheltering malicious files and evading detection.

MSNightmare released BigDiskBuster, an open-source PoC that can prevent Microsoft Defender from completing security updates.

Not quite an EDR-killer, but the proof-of-concept cyber technique creates a silent virus detection gap while service runs normally, no exploit required.

Microsoft veteran Raymond Chen, who has been with the company for more than three decades, has advice for everybody with two or more antivirus solutions, and it’s quite straightforward. Just don’t use ...

Microsoft regularly releases Windows updates, and software developers publish fixes for vulnerabilities, bugs, and ...

Most people start looking for antivirus software after something has already gone wrong: a pop-up that won’t close, a text from a “bank” that looked a little too real, or a laptop that suddenly takes ...

BigDiskBuster can block Microsoft Defender updates by filling disk space, leaving detection content stale; no patch or advisory exists.

Microsoft Defender supports Linux desktops in businesses. Administrators can manage the devices through their existing ...