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Wire · operational-macro

Microsoft 365 Outage Analysis: November 12, 2026

13 November 2026 · By · Wire by Fusion42

Published

13 November 2026

Topic

operational-macro

◆ Sectors

Enterprise SoftwareCloud Infrastructure

◆ Geography

United States

◆ Source

Read at thousandeyes.com →

◆ Verified

Fusion42 · 13 November 2026 · Fusion42 review

On November 12, 2026, Microsoft 365 services experienced a global outage, primarily impacting Outlook with connection issues and packet loss, as observed by ThousandEyes.

This Wire brief sits within Fusion42's coverage of Enterprise Software and Cloud Infrastructure, and 56 sources have reported it between 12 Nov 2026 and 13 Nov 2026.

◆ ◆ The Wire takeaway

A major outage in Microsoft 365 shows the risk of depending heavily on single cloud providers. If you build enterprise software, prepare backup plans and diversify your integrations.

◆ Coverage

56 sources · first reported 12 Nov 2026 · latest 13 Nov 2026

◆ Related on Wire

◆ Topics

Enterprise SoftwareCloud Infrastructuremicrosoft-365outagecloudenterprise-softwarenetwork-issues