You work for a small city IT department and you are discussi

You work for a small city IT department, and you are discussing methods of securing laptops, desktops, and servers with another technician. Of the following methods, which one do you say is used by disk encryption applications to protect the keys used to encrypt a computer’s hard drives?

A. Drive lock

B. BIOS password

C. Chassis intrusion detection

D. TPM

Solution

D. TPM, or Trusted Platform Module, is a secure cryptoprocessor designed to store cryptographic keys that are used to protect data. Full disk encryption applications, such as the BitLocker Drive Encryption featured in certain versions of Windows Vista and Windows 7, can use it to protect the keys used by this feature to encrypt the computer’s hard drive.