Installing this month's Windows Server security update has knocked some enterprise domain controllers into continuous reboot ...

Microsoft's Recall feature faces renewed security concerns as a researcher demonstrates how a tool can bypass its protections ...

Microsoft has confirmed that the December 2025 security updates are breaking Message Queuing (MSMQ) functionality, affecting enterprise applications and Internet Information Services (IIS) websites.

A global phishing campaign targeting Microsoft 365 bypasses security codes using a legitimate login feature, impacting ...

Microsoft says the October 2025 Windows security updates are causing smart card authentication and certificate issues due to a change designed to strengthen the Windows Cryptographic Services. This ...

Confused by a Microsoft error code? Learn about system, update, HTTP, and Azure-related codes, what they mean, and how to fix ...

Exclusive: Researchers who found the flaws scored beer money bounties and warn the problem is probably pervasive ...

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 ...

Researchers discover exploitable agentic AI technologies from ServiceNow and Microsoft. Securing agentic AI is already proving to be extremely challenging. Cybersecurity pros should adopt a "least ...

In a move that will significantly boost the use of its agent-based security assistant, which was released last year, Microsoft plans to automatically offer Security Copilot to its enterprise customers ...