Transparent Data Encryption (TDE) is a method used to protect data stored in database by automatically encrypting it at the storage level.
Encryption at Rest:
TDE encrypts the physical file (like data and log files ) on the disk to protect data at rest.
Automatic Decryption:
Authorized users and applications can access the data without needing to decrypt it manually, as the decryption happened automatically when data is read.
Prevents Unauthorized Access:
TDE protects data of the physical storage is stolen or accessed improperly, as user who is not allowed cannot read the encrypted files.
TDE is commonly used in SQL databases to ensure security compliance with minimal impact on application performance.