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Exposures, incidents and defensive changes for people who have to act.

17 September 2026

23 stories · latest 16 September 2026

Lead exposure · Brief

Windows 11 KB5124008 breaks domain trust on some enterprise systems

Microsoft is investigating reports that the Windows 11 KB5124008 security update breaks domain trust relationships on some enterprise systems. The evidence so far is early and thin: no affected builds, trigger conditions or fix have been stated.

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