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TDE Benefits

Benefits for organizations

  • Data safety: Prevents unauthorized access to stored data, even if backup files or storage devices are stolen or leaked.
  • Enterprise-ready Architecture: Supports both single and multi-tenancy, giving flexibility for SaaS providers or internal multi-user systems.

Benefits for DBAs and engineers

  • Granular control: Encrypt specific tables or databases instead of the entire system, reducing performance overhead.
  • Operational simplicity: Works transparently without requiring major application changes.
  • Defense in depth: Adds another layer of protection to existing controls like TLS (encryption in transit), access control, and role-based permissions.

When combined with the external Key Management Systems (KMS), TDE enables centralized control, auditing, and rotation of encryption keys—critical for secure production environments.

See also

Percona Blog: Transparent Data Encryption (TDE)

How TDE works