Cybersecuritynews2026-09-17 00:29:16

Windows 11 KB5124008 Update Breaks Active Directory Domain Trust and Blocks User Logins

Microsoft is investigating reports that the Windows 11 KB5124008 security update is breaking Active Directory domain trust on some enterprise computers, leaving users unable to sign in with valid credentials.

Summary

The problem appears linked to Machine Identity Isolation, although Microsoft has not confirmed the root cause or published an official workaround.

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This summary is a partial excerpt — the source's own feed cuts off here. Read the full story at Cybersecuritynews for the rest.

KazaSec's take

Domain and DNS-level issues are an easy blind spot — most organizations monitor their own network far more closely than they monitor how their domain and email authentication records are configured, or whether a lookalike domain has been registered against them.

Coverage details

Source: Cybersecuritynews
Published: 2026-09-17 00:29:16
Author: guru baran
Category: toptechnology

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