What feature allows the recovery of blobs that have been deleted or overwritten?

The feature that allows the recovery of blobs that have been deleted or overwritten is Soft Delete. This capability is specifically designed to protect against accidental deletions or overwrites by retaining the deleted data for a configurable retention period.

When Soft Delete is enabled for a storage account, any blobs that are deleted can still be recovered within this retention time. This feature effectively "soft deletes" the blobs by marking them as deleted instead of removing them entirely, thus enabling users to restore them without any data loss. This is particularly useful for scenarios in which data integrity is crucial and recovery from unintended actions is necessary.

Blob Versioning, while related, functions differently by keeping multiple versions of a blob. It allows users to retrieve a specific previous version of a blob, but it's not the same as recovering a deleted blob. Blob Encryption, on the other hand, provides security for the data at rest but does not offer recovery options for deleted data. Data Backups can be a method of data restoration but are not an inherent feature of Azure Blob Storage that allows recovery of recently deleted blobs.