Which feature of Amazon S3 uses the write-once-read-many (WORM) storage model?

Amazon S3 Object Lock is designed specifically to provide a write-once-read-many (WORM) storage model, which ensures that objects can be written or modified only once and cannot be deleted or overwritten for a specified retention period. This feature is crucial for compliance requirements where data immutability is necessary, such as for legal or regulatory standards.

With S3 Object Lock, once an object is locked, it remains in a specific state, preventing any modifications and preserving its original form, thus maintaining data integrity over time. This makes it particularly useful for scenarios such as maintaining audit logs, securing information that must be retained in its original state, or protecting backups against accidental or malicious deletion.

Other features, such as S3 Versioning, allow for the management of object versions and can store multiple versions of an object, giving flexibility in recovering from accidental deletions or unintended overwrites but do not enforce the immutable aspect associated with WORM. S3 Replication focuses on copying objects across different S3 buckets or regions, while S3 Transfer Acceleration is aimed at speeding up the upload and transfer of objects, none of which are aligned with the WORM storage model.