A researcher who calls himself Nightmare Eclipse published a free tool on September 19, 2026, that can quietly stop Windows ...

When Defender setting changes are not reflected, they are classified into four categories: event 5013, policy re-application, ...

Recently, Microsoft delivered its latest Defender patches for Windows 11 ISOs. These definitions are released from time to time alongside the general security updates available during Patch Tuesday.

Microsoft is testing a new Defender for Endpoint capability that will automatically isolate compromised endpoints to thwart attackers' attempts to move laterally across the network. This is now ...

On Windows PCs equipped with the Snapdragon X series, you can use various endpoint security products such as Microsoft ...

A single researcher has now bypassed the Malware Protection Engine three times running. The third bypass works on fully ...

‘This ecosystem is mature, professional enough to let you put the customer first,’ Microsoft CVP David Weston says. Upcoming limited access to a Windows endpoint security platform for third-party ...

Microsoft is deprecating Defender Application Guard for Office and the Windows Security Isolation APIs, and it recommends Defender for Endpoint attack surface reduction rules, Protected View, and ...

The glitch, which Microsoft says it working to fix, creates an attacker opportunity by convincing users to ignore critical cybersecurity alerts.

A patch Microsoft released on Wednesday to fix a zero-day vulnerability in its Defender security engine may cause Windows machines to write files large enough to completely consume available disk ...