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The 10 Biggest Cloud Outages Of 2020

Here is CRN‘s list of the 10 most significant cloud outages in a year of unprecedented operational distractions.

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Microsoft Office 365, Oct. 7

Microsoft Teams, Outlook, SharePoint Online, OneDrive for Business, and Outlook.com all saw degraded functionality after Microsoft attempted to update its network infrastructure on Oct. 7.

The third Office 365 outage in less than two weeks began that Wednesday afternoon at about 2:10 p.m., Eastern Time, according to Microsoft. User reports of Office 365 problems on downdetector.com spiked at about 2:26 p.m., ET.

At 2:48 p.m. ET, the Microsoft 365 Status account on Twitter acknowledged the outage.

Microsoft later said on its status page: “Further investigation has confirmed that a recent update to network infrastructure resulted in impact to Microsoft 365 services. Our telemetry indicates continued recovery within the environment following the reversion of the update.”

Microsoft Teams was among the first services to fully recover, while Exchange Online and Outlook.com took longer.

 
 
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