What Is Database Encryption?

Database encryption is used to protect sensitive data by converting it into an unreadable format, ensuring only authorized users can access it.

Data at rest refers to stored data on a storage device, while data in transit refers to data moving between systems over a network.

An encryption key is a piece of information used by encryption algorithms to encode and decode data securely.

Yes, encryption can introduce some overhead, but modern encryption systems are optimized to minimize performance impact.

Transparent data encryption (TDE) automatically encrypts data stored in a database without requiring changes to applications.