It is worth noting that RAID is not a backup. For example, if multiple hard drives in a RAID system are damaged at the same time, or data is accidentally deleted or attacked by ransomware, data is not protected. RAID helps protect against drive failure and allows for borrowed time to recover data.
Therefore, in order to maintain data security, you must also regularly back up data, set up firewalls, and follow ASUSTOR data protection recommendations. RAID is a powerful tool for data protection, but only when used in combination with proper backups and other data protection measures.