Microsoft released out-of-band patches for an actively exploited Microsoft Office zero-day, CVE-2026-21509, a security ...

And almost 50 more than last month.

‘We’re always going to sit in the middle and basically have to deal with rising alert volumes, giant telemetry repositories, faster IOCs [indicators of compromise] conversion, more containment,’ says ...

Congratulations to the winners of the 2026 Microsoft Security Excellence Awards that recognize the innovative defenders who have gone above and beyond.

All modern Windows PCs come with Microsoft Defender built in. For the unaware, this tool is Windows’ native antivirus. Over time, it has matured into a reliable security tool capable of blocking a ...

In the summer of 2024, corporate anti-malware provider CrowdStrike pushed a broken update to millions of PCs and servers running some version of Microsoft’s Windows software, taking down systems that ...

Microsoft is to expand its bug bounty scheme to reward people for finding high-risk security vulnerabilities that could impact the security of Microsoft’s online services. The company is extending its ...