Executive Summary

Microsoft is investigating a widespread service issue affecting Exchange Online customers, causing authentication failures, email delays, and other disruptions. The outage is impacting email delivery and user access, with Microsoft working to resolve the problem.

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Intelligence Metadata - Source Publisher: Bleeping Computer - Published Date: 2026-08-31T16:56:57+00:00 - Category: threat-intel

Original Description: Microsoft is investigating a widespread service issue causing authentication issues, email delays and failures, and various other issues for Exchange Online customers. [...]

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