Certified Information Systems Auditor (CISA) — Question 733

Which of the following would a digital signature MOST likely prevent?

Answer options

• A. Disclosure
• B. Repudiation
• C. Corruption
• D. Unauthorized change

Correct answer: B

Explanation

A digital signature ensures the authenticity and integrity of a message, which most effectively prevents repudiation, meaning the sender cannot deny having sent the message. While it can offer some protection against unauthorized changes and provide some level of integrity, it does not directly prevent disclosure or corruption.