Microsoft’s popular services Bing, Copilot, and Copilot on Windows experienced a blackout lasting over 24 hours, affecting users primarily in Asia and Europe. The outage began around 3 a.m. EST on Thursday, with users unable to access these services. Bing.com showed a blank page or HTTP error code 429, while DuckDuckGo and ChatGPT, which rely on Bing AI, also experienced downtime.
Throughout the day, Microsoft provided updates and worked on finding the root cause of the issue, eventually shifting requests to alternative service components to speed up recovery. Services gradually began to return, with DuckDuckGo being the first to come back online followed by Bing.com and Copilot.
However, users outside the United States continued to experience issues with Copilot even after partial recovery. Microsoft telemetry data showed steady recovery progress, and investigations were ongoing to determine the cause of the blackout.
Finally, at approximately 1:30 pm EST, Microsoft announced that Bing and Copilot services had been fully restored, confirmed by BleepingComputer’s testing. The Android, iOS, and Windows apps also resumed normal functionality.
In a statement to BleepingComputer, Microsoft attributed the blackout to an issue with an internal service-to-service call. Specifically, an internal call within the platform used by Copilot and Bing did not function as expected in relation to a specific user eligibility request.
Despite the blackout, Microsoft has resolved the issue and ensured that Bing, Copilot, and other affected services are back online worldwide. The company continues to investigate the root cause to prevent similar outages in the future.
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https://www.bleepingcomputer.com/news/microsoft/microsoft-copilot-fixed-worldwide-after-24-hour-outage/