CompTIA Security Plus Mock Test Q842

Company XYZ recently salvaged company laptops and removed all hard drives, but the Chief Information Officer (CIO) is concerned about disclosure of confidential information. Which of the following is the MOST secure method to dispose of these hard drives?

A. Degaussing
B. Physical Destruction
C. Lock up hard drives in a secure safe
D. Wipe


Correct Answer: B
Section: Application, Data and Host Security

Explanation:
The physical description of hard drives is the only secure means of disposing hard drives. This can include incineration, an acid bath, and crushing.

Incorrect Answers:
A, D. Data wiping is the process of securely removing data remnants from a storage device so that the data cannot be easily recovered. Degaussing is one method of data wiping.
However, data wiping does not provide a guarantee that the data is completely unrecoverable.
C: Locking hard drives in a safe still represents a risk should the attackers gain access to the safe.

References:
Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis, 2014, pp. 418-419
Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp. 256