Configuration change takes down Exchange Admin Center
Microsoft rolled back the change to restore service.
- Service
- Exchange Admin Center
- Date
- 12 October 2026
- Cause
- Configuration change
- Duration
- Not stated or multi-day
- Status
- resolved
- Severity
- minor
- Region
- Global
- Source
- The Register ↗
Cite this
Nuffield Consulting, “Configuration change takes down Exchange Admin Center”, The Daily Tech Wire outage & breach log, 12 Oct 2026. https://techwire.nuffieldconsulting.com/incidents/2026-10-12-exchange-admin-center-outage/ (retrieved 15 Nov 2026).
This entry summarises public reporting. Please also cite the original source: The Register, https://www.theregister.com/saas/2026/10/12/microsoft-blames-a-configuration-change-for-exchange-admin-center-tumble/5302698.
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