Multiple Microsoft 365 services are experiencing an outage
Outlook, Teams, SharePoint and other services affected as Microsoft investigates elevated infrastructure load
Quick Look
Microsoft is investigating an outage affecting multiple Microsoft 365 services including Exchange Online, Teams, SharePoint Online, Copilot 365, and Defender XDR, with elevated infrastructure load causing connectivity errors across Business, Enterprise, and individual tiers.
AI-generated summary
Why It Matters
Microsoft acknowledged the issue through its support account on X. The company's service status page listed Exchange Online, Microsoft Teams, SharePoint Online, Microsoft Copilot 365, and Microsoft Defender XDR as potentially impacted services.
Microsoft is experiencing an outage for several of its services this afternoon. Initial reports focused on users being unable to access their email in Outlook, but more than the one platform in its Microsoft 365 suite appears to be down. The company's support account on X acknowledged the issue.
At the time of writing, many Engadget staff were unable to even load Microsoft's service status page. Those who were saw a message that listed Exchange Online, Microsoft Teams, SharePoint Online, Microsoft Copilot 365 and Microsoft Defender XDR as the potentially impacted services. While the status report points to Business and Enterprise tiers of the 365 tools, individual users also appear to be impacted. The full update states:
"We're investigating an issue impacting multiple Microsoft 365 services and we've determined the affected infrastructure is experiencing elevated load across multiple regions, which is likely contributing to the connectivity errors. We're restarting and repairing impacted portions of this infrastructure to restore capacity, and reviewing an unexpected increase in a specific type of service traffic to determine whether it's contributing to the elevated load. In parallel, we're evaluating options to redirect traffic to alternate infrastructure to expedite relief."
Developing...
What to Watch
AI outlook — possibilities, not facts
Microsoft will restore affected services by restarting and repairing impacted infrastructure
Likely · Within hours
Open Questions
- What caused the elevated infrastructure load?
- How many users are affected?
- When will services be fully restored?
- Is the unexpected increase in service traffic malicious or legitimate?
