Microsoft's suite of productivity software was down for thousands of users on Thursday, according to outage tracking website Downdetector.com.
This comes nearly two months after a faulty software update from cybersecurity services provider CrowdStrike affected nearly 8.5 million Windows devices, crippling operations across industries ranging from airlines and banks to healthcare.
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"We're investigating an issue where users may be unable to access multiple Microsoft 365 services," the Windows parent said in a post on X.
Microsoft did not immediately respond to queries on the nature and cause of the outage and when it expects a recovery, but its Azure cloud platform said on X it was probing customer reports of a potential issue connecting Microsoft's services from AT&T networks.
The telecom operator did not immediately respond to a request for comment.
There were nearly 23,000 incidents of people reporting issues with Microsoft 365, according to Downdetector, which tracks outages by collating status reports from a number of sources, including user-submitted errors on its platform.
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More than 4,000 users also reported issues related to Microsoft Teams.
(Only the headline and picture of this report may have been reworked by the Business Standard staff; the rest of the content is auto-generated from a syndicated feed.)