An administrator is concerned that a computer with sensitive information can be tampered with or rendered inoperable. Despite the system's hard drive being secured with encryption along with a username and password combination, they want to ensure that the computer cannot be sabotaged through changes in the system's firmware.

What technique can they use to ensure that firmware has not been compromised?

A

Secure boot

B

Sandbox

C

Secure enclave

D

Steganography