Microsoft has confirmed an emergency security update as CISA warns that two new Defender zero-days are being exploited by attackers.

Microsoft is testing a new Defender for Endpoint capability that will block traffic to and from undiscovered endpoints to thwart attackers' lateral network movement attempts. As the company revealed ...

Microsoft pushed emergency patches this week for two zero-day vulnerabilities in Windows Defender, the antivirus software baked into every modern Windows PC. Both flaws are already being exploited in ...

Every federal civilian agency running Microsoft Defender now faces a two-week countdown to fix two actively exploited security flaws. CISA added CVE-2026-41091 and CVE-2026-45498 to its Known ...

Microsoft Defender XDR launches 12 auto-tuning rules to suppress low-severity alerts, reducing SOC alert fatigue while ensuring threats stay open. Microsoft Defender XDR now has a new alert tuning ...

If Passive Mode is enabled, Microsoft Defender Antivirus scans files without taking action. It finds and reports malware and security threats to your security console, but it does not quarantine files ...

See how Microsoft Defender performed in one year of real-world email security benchmarking against SEG and ICES vendors.

If you have received an error message saying, "Microsoft Defender SmartScreen prevented an unrecognized app from starting," while launching or installing a recently ...

Spread the love“`html Windows Defender, the built-in antivirus software for Windows operating systems, has become a trusted companion for many users looking to keep their devices secure. However, ...

Are you worried that your missing Windows Defender history is hiding an infection? Windows Security’s Protection History tracks the Defender’s actions, helping you identify and remove threats easily.