Certified Information Security Manager (CISM) — Question 484

Which of the following would provide the HIGHEST level of confidence in the integrity of data when sent from one party to another?

Answer options

• A. Harden the communication infrastructure.
• B. Require files to be digitally signed before they are transmitted.
• C. Enforce multi-factor authentication on both ends of the communication.
• D. Require data to be transmitted over a secure connection.

Correct answer: B

Explanation

Requiring files to be digitally signed before transmission provides the highest level of confidence in data integrity, as it ensures that the data has not been altered in transit. While hardening the infrastructure, enforcing multi-factor authentication, and using secure connections improve security, they do not directly guarantee the integrity of the data itself.