Which feature provides a way to set default encryption behavior for an Amazon S3 bucket?

The feature that sets default encryption behavior for an Amazon S3 bucket is Amazon S3 default encryption. This functionality allows users to automatically encrypt all objects uploaded to a specified bucket without needing to include encryption settings in each upload request. By enabling default encryption, you ensure that all objects are encrypted using the specified encryption method, either server-side encryption with Amazon S3 managed keys (SSE-S3) or with AWS Key Management Service (KMS) keys (SSE-KMS).

This feature is particularly beneficial for maintaining data security and compliance requirements, as it eliminates the risk of unintentionally storing unencrypted data in the bucket. By configuring this setting at the bucket level, users can streamline their data protection strategies and ensure that all new object uploads adhere to the organization’s security policies.