What is the main advantage of using encryption for data at rest?

Using encryption for data at rest primarily provides protection against unauthorized access. This means that even if an unauthorized user gains physical access to the storage medium where the data is stored, they cannot read or use the data without the proper decryption key. This adds a critical layer of security, ensuring that sensitive information, such as personal data or proprietary business data, remains confidential and secure against threats such as data breaches, theft, or insider threats.

The implementation of encryption at rest is especially important in cloud environments where data multitude could be stored across various locations and platforms. Compliance with legal and regulatory standards regarding data protection often mandates the use of strong encryption to safeguard this data. Therefore, encryption serves as a robust defense mechanism against potential vulnerabilities associated with stored data, providing peace of mind to businesses and individuals alike regarding the confidentiality and integrity of their information.