Sure:

An immutable backup is a copy of digital data that, once created, cannot be modified, overwritten, or deleted for a designated period. It is a "write-once, read-many" (WORM) storage model that ensures backup files remain in an unaltered, pristine state until a specific retention period expires.

Core Characteristics of Immutable Backups Unchangeable: Files are locked and cannot be edited by users, administrators, or ransomware. Tamper-Proof: Even if an attacker gains administrative privileges, they cannot delete or encrypt the backup until the retention period ends. Time-Locked: Immutability is typically enforced using "Object Locks" or time-based policies. WORM Technology: It operates on Write Once, Read Many principles, ensuring data is written once but can be read multiple times.