CompTIA Security+ (SY0-701) — Question 227

Which of the following most likely describes why a security engineer would configure all outbound emails to use S/MIME digital signatures?

Answer options

• A. To meet compliance standards
• B. To increase delivery rates
• C. To block phishing attacks
• D. To ensure non-repudiation

Correct answer: D

Explanation

The correct answer is D, as S/MIME digital signatures ensure that the sender cannot deny sending the email, thus providing non-repudiation. Options A and B do not directly relate to the primary function of S/MIME, while C, although related to security, does not specifically address the non-repudiation aspect that S/MIME provides.