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Microsoft 365 and Azure Hit by Major Global Outage, Automated Network Maintenance Bug Identified
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Fusion42 · 25 July 2026 · Fusion42 review
Microsoft 365 and Azure experienced a major global outage on 23 July caused by a bug in automated network maintenance that incorrectly removed IP routes from multiple network devices in the West US region. The incident disrupted SharePoint, Teams, OneDrive, Power Automate, and other cloud services for thousands of users.
This Wire brief sits within Fusion42's coverage of Enterprise Software, and 5 sources have reported it between 24 Jul 2026 and 25 Jul 2026.
◆ ◆ The Wire takeaway
If you build on Azure or Microsoft 365, an automation bug just took your platform offline for hours—and Microsoft's own maintenance tool did it. You now have a hard dependency on a system that can fail catastrophically without human review; talk to your infrastructure team this week about failover patterns that don't rely on a single cloud region's automation layer.
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5 sources · first reported 24 Jul 2026 · latest 25 Jul 2026
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