Microsoft confirms Kerberos and NTLM login failures in Windows 11 24H2, 25H2, and Server 2025 due to duplicate SIDs after ...

Microsoft has confirmed that Windows updates released since August 29, 2025, are breaking authentication on systems sharing ...

Microsoft has confirmed that the September 2025 security updates are causing Active Directory issues on Windows Server 2025 ...

Tracked as CVE-2025-33073, the vulnerability affects the Windows Server Message Block client, a core component used for file ...

US cybersecurity agency CISA warns of active exploitation of a vulnerability in the Windows SMB protocol. Attackers can use ...

A mandatory Windows 11 security update is wreaking havoc on some systems, and Microsoft is working on a hotfix to reverse the ...

The transition from CSP to KSP has triggered failures in smart card authentication, IIS connectivity, and recovery mode ...

Admins are urged to immediately patch actively exploited vulnerabilities, including those in the legacy Agere modem driver in Windows.

Microsoft has detailed a fix for a bug affecting tons of versions of Windows, but applying the patch is not as simple as ...

The bug, tracked as CVE-2025-33073, was added to CISA's Known Exploited Vulnerabilities (KEV) catalogue on October 20, ...

Microsoft has confirmed that a new bug in Windows Server 2025 causes directory sync failures for AD groups with over 10,000 ...