CISM Certified Information Security Manager – Question0679 - CISM Certified Information Security Manager

In the process of deploying a new e-mail system, an information security manager would like to ensure the confidentiality of messages while in transit. Which of the following is the MOST appropriate method to ensure data confidentiality in a new e-mail system implementation?

A. Encryption
B. Digital certificate
C. Digital signature
D. I lashing algorithm

Correct Answer: A

Explanation:

Explanation:
To preserve confidentiality of a message while in transit, encryption should be implemented. Choices B and C only help authenticate the sender and the receiver. Choice D ensures integrity.