It is important to staff who use email messaging to provide PII to others on a regular basis to have
confidence that their messages are not intercepted or altered during transmission. They are
concerned about which of the following types of security control?

A.
Integrity

B.
Safety

C.
Availability

D.
Confidentiality

Explanation:
Integrity means that the messages/ data is not altered. PII is personally identifiable information
that can be used to uniquely identify an individual. PII can be used to ensure the integrity of
data/messages.