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Microsoft Outage: 37,000 Users Affected by Code Change

3/4/2025

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Summary

Story summary

On March 1, Microsoft faced a major outage that left users in the dark for over three hours, impacting Outlook, Teams, and Office 365. A "problematic code change" triggered the chaos, resulting in over 37,000 complaints, mainly from U.S. cities. Although services were restored later that evening, many users still encountered lingering issues.

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Story summary

On March 1, Microsoft faced a major outage that left users in the dark for over three hours, impacting Outlook, Teams, and Office 365. A "problematic code change" triggered the chaos, resulting in over 37,000 complaints, mainly from U.S. cities. Although services were restored later that evening, many users still encountered lingering issues.