CISM Certified Information Security Manager – Question0666

Which of the following is the MOST important consideration when securing customer credit card data acquired by a point-of-sale (POS) cash register?

A. Authentication
B. Hardening
C. Encryption
D. Nonrepudiation

Correct Answer: C

Explanation:

Explanation:
Cardholder data should be encrypted using strong encryption techniques. Hardening would be secondary in importance, while nonrepudiation would not be as relevant. Authentication of the point-of-sale (POS) terminal is a previous step to acquiring the card information.