🔶 Amazon S3 starts rolling out new security best practice to new and existing buckets by default

S3 is now deploying a new default bucket security setting which will automatically disable server-side encryption with customer-provided keys (SSE-C) for all new general purpose buckets.

https://aws.amazon.com/ru/about-aws/whats-new/2026/04/s3-default-bucket-security-setting

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