~/moritzsamrock_

Data at Rest

Also known as:DAR

Data at Rest: Data that is stored and not currently being transmitted or processed. ImplementationImplementationThe practical realization of a security design, requirement, or control in a system or process. requires a holistic view of architecture, permissions, hardening, monitoringMonitoringThe continuous observation of systems, identities, networks, and controls for relevant changes., dependencies, and operational recoveryRecoveryThe controlled restoration of systems, data, and business services after a disruption..

How it works and where it fits

Data at Rest must be considered across the complete data lifecycle: creation, processing, transfer, storage, sharing, archiving, and deletion. Safeguards depend on sensitivity, legal obligations, business value, and potential harm. Copies, metadata, and derived information may carry the same or a different protection requirement.

Practical security relevance

In practice, this calls for classification, governed access, suitable encryption, and traceable retention periods. Data flows and storage locations should be inventoried across cloud services, backups, and test environments. Monitoring and loss prevention complement technical controls, but they do not replace data minimization or the secure deletion of information that is no longer required.

  • Data in TransitData in TransitData being transmitted between systems, networks, or components.: Data being transmitted between systems, networks, or components.
  • Disk EncryptionDisk EncryptionEncryption of an entire data storage medium or selected storage areas.: Encryption of an entire data storage medium or selected storage areas.
  • Data ClassificationData ClassificationAssigns data to protection classes based on sensitivity, value, and regulatory requirements.: Assigns data to protection classes based on sensitivity, value, and regulatory requirements.
  • EncryptionEncryptionConverts plaintext into unreadable ciphertext using a key.: Converts plaintext into unreadable ciphertext using a key.

Related terms