Which aspect of database security is commonly assessed during compliance testing to ensure data confidentiality?

Encryption is commonly assessed during compliance testing to ensure data confidentiality. Encryption involves converting sensitive data into a secure format that can only be accessed with the appropriate decryption key. By encrypting data at rest and in transit, organizations can protect against unauthorized access and maintain compliance with regulatory requirements related to data privacy and confidentiality. Compliance testing evaluates the implementation of encryption mechanisms, such as encryption algorithms, key management practices, and data encryption policies, to ensure adequate protection of sensitive information.