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Major Microsoft Outlook Outage Leaves People With Email Jobs Unable to Email
WIRED • • business
Key Points:
- Microsoft 365 business and enterprise services experienced a major outage on Thursday, affecting access to Microsoft Teams, Exchange Online, SharePoint Online, Microsoft Copilot 365, and Microsoft Defender XDR.
- The outage began around 10:40 am ET with connectivity issues in North America and escalated due to servers going offline, not increased traffic, causing widespread service disruptions.
- Microsoft responded by redistributing connection traffic, pausing deployments, and restarting affected servers to restore service, while investigating the root cause of the server failures.
- Reports of service issues peaked around noon ET and started to decline by 1:15 pm ET, but the exact cause and resolution time remain unclear, with no evidence suggesting a cyberattack.
- Major Microsoft outages are uncommon but not unprecedented, with a notable incident in July 2024 caused by a corrupted security update that disrupted Azure services for hours.
