Security News > 2023 > July > Microsoft Sharepoint outage caused by use of wrong TLS certificate
Microsoft Sharepoint and OneDrive for Business were briefly interrupted today after a German TLS certificate was mistakenly added to the main.com domains for the Microsoft 365 services.
At approximately 3:08 PM ET today, a Microsoft 365 advisory 'SP659992' warned that users may be unable to access SharePoint Online and OneDrive for Business.
"Users may have seen a certificate error when attempting to access SharePoint Online and OneDrive for Business. Users may also have been unable to access or present files within Microsoft Teams," reads the SP659992 bulletin.
Microsoft resolved the issue ten minutes later, stating that the problem was caused by a recent certificate update that resulted in users receiving errors when attempting to access the service.
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