Microsoft Threat Intelligence examines DeadLock ransomware, an emerging financially motivated operation distinguished by its ...

A credential-stealing worm hidden in more than 400 compromised npm packages automatically spread across software ecosystems ...

Learn why KuppingerCole named Microsoft a Leader in its Leadership Compass: Cloud Native Application Protection Platforms ...

Read how to apply Zero Trust for AI with new assessments, DevSecOps guidance, and practical tools to secure AI agents, code, ...

Storm-2945, a sub-cluster of the Russian threat actor Midnight Blizzard, has been observed compromising the sign-in portals ...

This year, the Microsoft Bounty Program awarded more than $20 million to 562 security researchers, the highest total payout and the largest number of researchers recognized in the program's history.

Discover how leading healthcare organizations use Microsoft Fabric, Dragon Copilot, Azure, and Microsoft IQ to build trusted, scalable foundations for agentic AI and better patient care.

Microsoft is named a Leader in the 2026 IDC MarketScape for MDR services. Discover how Microsoft Defender Experts MDR combines AI, threat intelligence, and human expertise.

A macOS ClickFix campaign shifted tactics from openly serving infostealer lures to hiding them behind a browser-fingerprinting gate. The change makes malicious infrastructure harder to detect while ...

Microsoft Defender automatically isolated a compromised QNET endpoint in 129 seconds, stopping a multi-stage attack before the payload could persist or spread.

New data from Microsoft 365 Copilot telemetry signals, along with examples from our customers around the world, demonstrate AI transformation in action.

The Controller Bar and XBOX Game Pass widget make it easier to play. Windows 11 is the most secure version of Windows yet. It's important for security to be invisible so you can focus on using your PC ...