Making sure that the data has not been changed unintentionally, due to an accident or malice is:

A.
Integrity.

B.
Confidentiality.

C.
Availability.

D.
Auditability.

Explanation:
Integrity is upheld when the assurance of the accuracy and reliability of information and systems is provided
and any unauthorized modification is prevented. Hardware, software, and communication mechanisms must
work in concert to maintain and process data correctly and to move data to intended destinations without
unexpected alteration. The systems and network should be protected from outside interference and
contamination.
Incorrect Answers:
B: Confidentiality is the assurance that information is not disclosed to unauthorized individuals, programs, or
processes. This is not what is described in the question.
C: Availability ensures reliability and timely access to data and resources to authorized individuals. This is not
what is described in the question.
D: Auditability is the ability of something to be audited. This is not what is described in the question.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, pp. 23, 159