Microsoft blames technical upgrade for global service outage
Microsoft stated on Friday that a widespread global outage affecting its services resulted from a technical issue rather than a cyberattack or artificial intelligence.
Outage scope and timeline details
The disruption began Thursday with Exchange Online, the system powering business email through Outlook. The issue persisted through Friday and impacted capabilities within additional Microsoft 365 offerings depending on Exchange Online. These impacted Teams calendars, Copilot and SharePoint according to company statements. Some users continued experiencing access problems and email delays as services recovered gradually.
Root cause identified by firm
Microsoft identified the outage as stemming from a prior issue caused by a previous network capacity enhancement. This issue emerged following a recent network change within their infrastructure systems. The company said it had resolved the technical fault while restoration efforts continued for remaining customers and regions.
Company response and future steps
Microsoft apologized to customers and partners for the disruption this incident has caused. They restored services gradually due to the scale of demand to verify stability at each stage. Once the inquiry finished, the firm promised to release a comprehensive report regarding the incident.
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