Huawei states that “HyperLock is also called the Write Once Read Many (WORM) feature” and that it protects the integrity, confidentiality, and accessibility of stored data. The course further explains that with WORM, data can be written once and then cannot be rewritten, modified, deleted, or renamed during the protection period.

Therefore, HyperLock is the critical function for this requirement. Encryption protects data confidentiality, but encrypted backup data could still be deleted or maliciously overwritten if the attacker obtains sufficient privileges. Network isolation and stronger authentication reduce the attack surface, but neither provides the immutable-copy property specified in the scenario.

HyperLock establishes that immutable recovery layer. Even if ransomware compromises production data or attempts to destroy backup copies, properly locked backup data remains protected against unauthorized alteration or deletion throughout the retention period. This is precisely the security property needed when backup data must form the final recovery boundary against ransomware.

Study Guide Topics: Data Protection Solution → OceanProtect Backup Storage → High Security Design → HyperLock → WORM → Ransomware Protection.