CompTIA SecurityX (CAS-005) — Question 287

Which of the following security features do email signatures provide?

Answer options

• A. Non-repudiation
• B. Body encryption
• C. Code signing
• D. Sender authentication
• E. Chain of custody

Correct answer: A

Explanation

Email signatures provide non-repudiation, meaning that the sender cannot deny having sent the email, as the signature verifies their identity. Body encryption protects the content of the email, but it is not a feature of signatures. Code signing is related to software integrity, while sender authentication verifies the sender but does not guarantee non-repudiation. Chain of custody refers to the handling of evidence and does not apply to email signatures.