Offline storage refers to keeping digital data or backups on devices that are physically disconnected from any network or the internet. This method helps protect sensitive information from cyber threats such as hacking, ransomware, or unauthorized access, since attackers cannot reach data that is not connected online. Common forms of offline storage include external hard drives, USB flash drives, DVDs, or magnetic tapes. Organizations and individuals use offline storage to ensure critical data remains safe, especially as part of a comprehensive backup and disaster recovery strategy.