By late evening, services appeared to be largely restored: Microsoft
tweeted at 9:21 p.m. ET that “most users should be experiencing relief.” The company added that it was “continuing to see significant improvement for affected services.”
Earlier, the company
indicated affected
services included Outlook.com, Office.com, Power Platform, Dynamics365, and Microsoft Teams including Teams Live Event.
According to Down Detector, a website that tracks internet outages, users reported issues with logging in, server connection and Outlook.
The downtime began around 5 pm ET for Office 365,
according to the site.
Microsoft
initially attributed the outage to a recent change to the platform, but later
indicated it was “not observing an increase in successful connections after rolling back a recent change. We’re working to evaluate additional mitigation solutions while we investigate the root cause.”
A Microsoft spokesperson later told CNN Business that “at this time, we’ve seen no indication that this is the result of malicious activity.”
— Donie O’Sullivan contributed to this report.
Read More: Microsoft 365 services are coming back after major outage