Microsoft 365 service was down for over 12 hours; the system stabilized after a patch was released.
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AT A GLANCE
According to reports, Microsoft Outlook, Teams, and other services were disrupted for over 12 hours, affecting governments and enterprises in multiple countries, and the systems are stabilizing after a patch was released.
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Microsoft Outlook and Teams have been down for over 12 hours, affecting governments and businesses in multiple countries worldwide.
PANews November 13 reports that, according to Reuters, the outage of Microsoft Outlook and Teams services has lasted more than 12 hours, with Copilot also affected. Microsoft stated that the failure was caused by server issues, primarily impacting functions reliant on Exchange Online. After a fix was released, the system is stabilizing, and Microsoft said no malicious activity has been detected. Affected entities include government agencies in Australia, Japan, the United States, and the United Kingdom; the UK's NHS has switched to alternative methods such as paper records. Business operations at Euronext, Maersk, OpenAI, Anthropic, and other companies have also been disrupted. According to insiders, a financial institution in Taiwan canceled a bond repurchase transaction. This marks the second outage this year for Microsoft 365 services, and Microsoft's stock fell 1.7% in pre-market trading.
PANews reported on November 13, citing Reuters, that Microsoft Outlook and Teams services have been disrupted for more than 12 hours, and Copilot has also been affected.
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Microsoft said the outage was caused by a server issue and primarily affected features that rely on Exchange Online.
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Microsoft stated that the system is stabilizing following the release of the fix, and no malicious activity has been detected.
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The report lists affected government agencies located in Australia, Japan, the United States, and the United Kingdom; the UK's NHS has switched to alternative methods such as paper records.
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The operations of companies such as Euronext, Maersk, OpenAI, and Anthropic have also been disrupted.
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According to informed sources, a financial institution in Taiwan canceled a bond repurchase transaction.
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The report said this was the second outage of Microsoft 365 services this year, and Microsoft's stock fell 1.7% in pre-market trading.
AI-assisted interpretation
The following is analysis, separate from reported facts. Verify important claims independently.
This incident involved multiple Microsoft services becoming unavailable, affecting organizations that rely on these services to conduct their operations. The UK's NHS switching to paper records is a specific example of the response reported. "Trending towards stability" does not mean full restoration has been achieved; "no malicious activity detected" is Microsoft's current statement.
Why it matters to readers
The impact is not limited to software use; it also affects government agencies, medical records, and corporate operations. The report also noted that Microsoft’s stock fell in pre-market trading, but there is no evidence proving that the decline was entirely caused by this outage.
Pay attention to whether services have been fully restored and to actual business losses; do not automatically attribute service outages to cyberattacks, nor assume a causal relationship solely based on a concurrent drop in stock prices.
Risks and unknowns
The report has not confirmed that all affected services have been fully restored.
The specific root cause of the server issue, its scope of impact, and business losses have not yet been disclosed.
Microsoft stated that no malicious activity was detected, but the materials did not provide independent verification.
The news of the cancellation of bond repurchase transactions came from unnamed insiders, with the names of institutions and the transaction amounts undisclosed.
Related Developments
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It is impossible to confirm the specific causal relationship between Microsoft's pre-market 1.7% drop and this outage.
Related concepts
Exchange Online
This term is not in the glossary yet. Browse related concepts in the glossary.
