Microsoft Confirms Widespread Authentication Failures in Latest Windows Releases
Microsoft has acknowledged significant authentication failures impacting enterprise Windows environments. The issues stem from stricter security enforcement that blocks systems with duplicate Security IDs, causing login disruptions across organizations.
Windows Authentication Crisis Emerges
Microsoft has confirmed widespread login issues affecting Windows 11 versions 24H2 and 25H2 along with Windows Server 2025 systems, according to company reports. The authentication failures involve both Kerberos and NTLM protocols, creating significant access problems for enterprise users across multiple organizations.