Which of the following controls can be used to prevent the disclosure of sensitive information stored on a
mobile device’s removable media in the event that the device is lost or stolen?

A.
Hashing

B.
Screen locks

C.
Device password

D.
Encryption

Explanation:
Encryption is used to ensure the confidentiality of information.
Incorrect Answers:
A: Hashing refers to the hash algorithms used in cryptography. It is used to store data, such as hash
tables.
B: You can secure your phone or tablet by setting a screen lock. Each time you turn on your device or
wake up the screen, you’ll be asked to unlock your device. But this does not mean that your sensitive data
is safe. You should still encrypt your sensitive data.
C: Device passwords are only meant to unlock screen lock on your mobile device.

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis,
2014, pp. 255, 291