Which of the following should be used to ensure an attacker is unable to read the contents of a mobile device’s drive if the device is lost?

Trusted Platform Module (TPM) is a hardware component that provides secure cryptographic functions and can store encryption keys. However, while it enhances security by protecting keys used in encryption processes, it does not itself encrypt data on the device. Therefore, TPM alone does not prevent an attacker from reading data if the device is lost.

Elliptic Curve Cryptography (ECC) is a form of public key encryption that provides secure communication. Although it is effective for secure key exchanges and digital signatures, it does not encrypt the entire storage drive of a mobile device. Thus, ECC is not a solution for protecting lost device data from unauthorized access.

Hardware Security Module (HSM) is a physical device used to manage and protect cryptographic keys. While it provides a secure environment for key management, it does not encrypt the data stored on a mobile device itself. Therefore, HSM is not applicable for preventing data access in the event of device loss.