Google Cloud experienced a major service disruption affecting multiple products and regions on June 12, 2025.
The incident was due to an introduced feature in Service Control which led to widespread API request errors.
The root cause involved a null pointer in the Service Control binary due to a policy change causing crashes globally.
The incident resulted in elevated 503 errors and intermittent API and user interface access issues for many customers.
Google is taking significant steps to prevent future incidents, including modularizing Service Control architecture and improving error handling, testing, and communication systems.
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