Multiple Google Cloud products experienced a significant service disruption on June 12, 2025, due to a policy change that led to increased 503 errors in API requests. The incident, which began at 10:51 AM PDT and lasted until 6:18 PM PDT, was caused by a failed code change in the Service Control system, resulting in crashes across various services globally. Google has committed to improving their systems and communication to prevent future outages and enhance service reliability.