TLDR Microsoft stock dropped about 2% in premarket trading Friday. It is on track for its lowest close since Nov. 2 and its worst week since the week ending July 24. An outage that began Thur
Microsoft (MSFT) stock slipped about 2% in premarket trading Friday as a worldwide outage dragged into a second day. The stock was on track for its lowest close since Nov. 2.
It was also heading for its worst weekly performance since the week ending July 24. Not the way anyone wants to end a trading week.
The trouble started Thursday and hit Outlook, Teams and Copilot. Microsoft said mailbox access may fail.
Update: Microsoft says recovery is progressing in phases, with gradual improvement across several Microsoft 365 services.
Incident Details: https://t.co/pVFe4mMkw1
The company has extended the email timeout window to 48 hours to protect delayed messages while it continues… https://t.co/4E4c8fxVXq
— Cyber Security News (@The_Cyber_News) November 13, 2026
Email delivery is also delayed. Core Teams functions are still working.
Microsoft reported a “partial recovery” in comments on X. Engineers were still working on a full fix.
Copilot is the product Microsoft has pushed hardest lately. CEO Satya Nadella made it the first topic on the late October earnings call.
He said daily users rose nearly 50% from the prior quarter. That was more than five times the level from a year earlier.
Nadella also said user satisfaction climbed 20% quarter over quarter. Now many of those users cannot reach the tool.
Microsoft said there is no sign anyone outside the company caused the problem. It also said “malicious” activity was not to blame.
The outage is reminiscent of one that hit Cloudflare (NET). That stock later recovered.
Outage reports reached 74 countries and territories in about an hour, according to Downdetector. Banks, governments and courts in multiple countries were affected.
In the US, the House of Representatives said its engineers were working with Microsoft. City governments nationwide reported widespread email disruptions.
In the UK, a disruption to the National Health Service email system is expected to stop some patients from getting their drug prescriptions. Microsoft has not given a time for full recovery.
The company said it is making “additional progress toward recovery.” It described the recovery progress as “encouraging.”
Microsoft said traffic is “being gradually restored” as its engineers work on the fix.
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