What type of security does the AWS Backup Vault Lock feature use?

Write-once, read-many (WORM)

Explanation

AWS Backup Vault Lock is a feature that helps fortify compliance requirements by protecting your backups and lifecycles against intentional or accidental actions, such as deletions. AWS Backup Vault Lock uses a WORM model. WORM is a technology that prohibits changes or modifications of data once written, making the data immutable.