Microsoft 365 Down: Why ChatGPT And Claude Lost Access To Your Emails And Calendar
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A Microsoft 365 outage has severed the connectors that let ChatGPT and Claude read users' Outlook email, calendars, Teams chats and SharePoint files, leaving both AI assistants unable to access Microsoft work data even though the assistants themselves remain online. The disruption stems from Microsoft's side of the integration rather than the AI platforms, since the underlying data sits on Microsoft's infrastructure. The outage highlights how dependent enterprise AI workflows have become on third-party cloud connectors, turning a single productivity suite failure into a multi-vendor AI disruption. Users can still access ChatGPT and Claude for general tasks but lose context-aware answers drawn from their Microsoft accounts. What to watch next is Microsoft's restoration timeline for the 365 connectors and whether OpenAI and Anthropic add fallback or status messaging for affected enterprise customers.
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Microsoft (MSFT), Microsoft 365, Claude, ChatGPT
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