Microsoft apologizes for global service outage: underlying issue resolved, unrelated to cyberattack
IT之家 November 14 news: Microsoft issued a statement on X early this morning Beijing time, apologizing to customers and partners for this global service outage and saying the failure was triggered by a network capacity upgrade and was unrelated to a cyberattack or AI/agents.
The company said it “deeply apologizes” for the service disruption this incident caused to customers and partners. Microsoft said it understands the trust customers place in its services and takes that responsibility very seriously; services have now broadly recovered and are stabilizing.
The company said the incident was introduced by an issue in an earlier network capacity upgrade and was exposed after a recent network change. Microsoft stressed that this was a technical failure and was unrelated to a cyberattack or AI/agents.
Microsoft said the underlying issue has been resolved, and the company is still restoring service for remaining affected customers and regions. The company said that given the scale of demand, recovery work took a phased approach and validated stability at each stage; this process took longer but helped ensure stable service recovery.

IT之家 previously reported that on local time November 12, multiple core cloud services under Microsoft 365 suffered a large-scale failure, affecting Outlook, Exchange Online, Microsoft Teams, OneDrive, SharePoint, Microsoft 365, and other products, and the connectivity components used by OpenAI and Anthropic AI services were also affected. According to data from outage monitoring site Downdetector, Outlook problem reports at one point approached 138058.
Microsoft said it will publish a “full post-mortem report” after the review is complete. As of publication, the company had not announced when the report would be released.
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