Offlinesäilytys

Offlinesäilytys, meaning offline storage in Finnish, refers to the practice of storing data in a way that it is not directly accessible from a network. This typically involves removing the storage medium from any connected system or network, making it immune to online threats such as malware, ransomware, or unauthorized remote access.

The primary purpose of offlinesäilytys is to safeguard critical data, such as backups, archives, or sensitive information, against cyberattacks that could compromise online-connected storage. By physically isolating the data, it becomes a last resort for recovery in the event of a successful online breach. This method is often considered a crucial component of a comprehensive disaster recovery and business continuity plan.

Common forms of offlinesäilytys include storing data on external hard drives, tapes, optical media, or specialized offline storage devices. These media are then disconnected and kept in a secure physical location. The key characteristic is the absence of an active network connection. Restoring data from offlinesäilytys requires physically reintroducing the storage medium to a connected system. While effective for security, this process can be time-consuming compared to accessing online backups. It is a robust security measure, particularly valuable for long-term data preservation and protection against sophisticated cyber threats.