https://www.infoq.com InfoQ Storage News feed https://www.infoq.com/news/2026/03/s3-account-regional-namespaces/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=Storage-news <img src="https://res.infoq.com/news/2026/03/s3-account-regional-namespaces/en/headerimage/generatedHeaderImage-1773935729085.jpg"/><p>AWS introduced account-regional namespaces for S3, fixing global bucket name collisions that broke IaC automation for 18 years. The new format is {prefix}-{account-id}-{region}-an. CloudFormation gets the BucketNamePrefix property, and IAM gets the s3:x-amz-bucket-namespace condition key. This prevents confused-deputy attacks by making names unpredictable when there is no account ID.</p> <i>By Steef-Jan Wiggers</i> Storage AWS Amazon Security S3 Amazon Web Services Cloud Development Architecture & Design DevOps news Thu, 26 Mar 2026 10:04:00 GMT https://www.infoq.com/news/2026/03/s3-account-regional-namespaces/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=Storage-news Steef-Jan Wiggers 2026-03-26T10:04:00Z /news/2026/03/s3-account-regional-namespaces/en