In general, you shouldn't need to define exclusions for Microsoft Defender Antivirus. However, if necessary, you can exclude files, folders, processes, and process-opened files from Microsoft Defender ...

Security teams are being pushed to their limits as AI‑powered cyberattacks grow in speed, scale, and sophistication—and only 14% of organizations surveyed by the World Economic Forum report they feel ...

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. Updated December 13 with news of a zero-day exploit that ...

Microsoft Defender XDR faced a significant service disruption yesterday after a sudden traffic spike caused heavy CPU overload on core components powering the Defender portal. The outage left some ...

On December 2, 2025, Microsoft experienced a widespread outage in its Defender Portal that prevented many organizations from accessing critical security alerts and threat-hunting data. According to ...

Even though Windows tells you “You’re using the latest version”, the last updated date is a few days old. That makes it easy for regular users to think ...

Microsoft made several announcements on Tuesday at its annual Ignite conference for developers and IT professionals, unveiling security enhancements in products such as Defender, Sentinel, Copilot, ...

Artificial intelligence-enabled agents are taking the enterprise by storm, and the level of autonomy they introduce brings some serious security challenges that Microsoft Corp. is doing its best to ...

Microsoft Defender Application Guard’s Hyper-V malicious detection is being abandoned in favor of a faster rules-based design. Windows enterprise administrators will have until December 2027 at the ...

is a news writer who covers the streaming wars, consumer tech, crypto, social media, and much more. Previously, she was a writer and editor at MUO. On Azure’s status page, Microsoft’s messages have ...

Microsoft Defender quietly runs several background tasks, including daily quick scans and real-time checks of every file you or an app opens, and those processes can affect PC performance. If you find ...