Matt, a security administrator, wants to ensure that the message he is sending does not get intercepted or modified in transit. This concern relates to which of the
following concepts?

A.
Availability

B.
Integrity

C.
Accounting

D.
Confidentiality

Explanation:
Integrity means ensuring that data has not been altered. Hashing and message authentication codes are the most common methods to accomplish this. In addition,
ensuring nonrepudiation via digital signatures supports integrity.
Incorrect Answers:
A: Availability refers to the measures that are used to keep services and systems operational.
C: Accounting refers to applications.
D: Confidentiality means that the message/data retains its privacy.

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, Sixth Edition, Sybex, Indianapolis, 2014, p 414