What defines a Self-Encrypting Drive (SED)?

A Self-Encrypting Drive (SED) is defined by its built-in cryptosystem, which automatically encrypts data written to the drive without needing user intervention. This integrated encryption mechanism is designed to secure the data at rest, ensuring that all information stored on the drive is protected through hardware-level encryption.

The encryption process occurs seamlessly and efficiently at the drive level, typically using advanced algorithms to protect sensitive information. Because the encryption is performed by the drive itself, it minimizes the risk of leaving personal data unprotected, unlike traditional software-based encryption methods that may require additional steps from users and can potentially be compromised by vulnerabilities in the software.

This built-in feature of self-encryption distinguishes SEDs from other types of drives, which may require external tools or programs to handle encryption and access control. Overall, the defining characteristic of a Self-Encrypting Drive lies in its ability to operate as a secure unit with automatic data protection at the hardware level.