The primary function of a backup solution in data protection is to ensure that critical data is securely stored and can be recovered in case of loss or corruption. Backup solutions create copies of files, applications, and system configurations, allowing organizations to restore their data following incidents such as hardware failures, cyberattacks, or accidental deletions. This practice safeguards against data loss and ensures business continuity. Implementing an effective backup strategy involves choosing the right backup frequency and storage method, such as cloud-based systems or physical media.