Microsoft experienced a major global outage lasting over 19 hours affecting Outlook, Teams, and Copilot. An investigation revealed that a central infrastructure process began consuming excessive resources, leaving servers unresponsive.
The company responded by restarting components, redirecting traffic, and deploying software fixes. However, service recovery has remained irregular, with no complete normalization timeline provided yet. Microsoft has found no evidence of a cyberattack behind the incident, suggesting the issue stemmed from an internal infrastructure failure rather than external interference.