Microsoft’s May 2026 security update fixes what the Hong Kong Computer Emergency Response Team describes as 138 ...

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

A recent report from Microsoft reinforces warnings about the critical role Active Directory (AD) domain controllers play in large-scale ransomware attacks, aligning with U.S. government advisories on ...

Microsoft is reinforcing warnings about the critical role Active Directory (AD) domain controllers play in large-scale ransomware attacks, aligning with U.S. government advisories on the persistent ...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is no longer recommending the installation of May Patch Tuesday updates on Domain Controllers because of authentication issues.

Microsoft is investigating LSASS memory leaks (caused by Windows Server updates released during the November Patch Tuesday) that might lead to freezes and restarts on some domain controllers. LSASS ...

To ward off the attack known as PetitPotam, Microsoft advises you to disable NTLM authentication on your Windows domain controller. Microsoft is sounding an alert about a threat against Windows domain ...