World: Major outage leaves hundreds of millions of Microsoft customers without service

The outage affected Copilot, messaging services, and videoconferencing tools starting Thursday evening, according to sources.

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This is the fourth major outage in sixteen months for the company, based on reported observations.

Such an interruption could quickly become an operational crisis for businesses, according to an analysis.

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Auto-synthesis from 2 media sources · identified on November 13, 2026