Microsoft rolls out new Kerberos protections to block RC4 encryption, with enforcement mode becoming mandatory for domain controllers in 2026.

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 ...

Microsoft has resolved a known issue that caused some Windows Server 2025 domain controllers to become unreachable after a restart and triggered app or service failures. As Redmond explained when it ...