CompTIA
SY0-701 · Question #784
A user sends an email that includes a digital signature for validation. Which of the following security concepts would ensure a user cannot deny they sent the email?
The correct answer is A. Non-repudiation. A digital signature provides cryptographic proof of origin, preventing the sender from denying they authored and sent the email - this is the essence of non-repudiation.
Submitted by miguelv· Mar 6, 2026General security concepts
Question
A user sends an email that includes a digital signature for validation. Which of the following security concepts would ensure a user cannot deny they sent the email?
Options
- ANon-repudiation
- BConfidentiality
- CIntegrity
- DAuthentication
How the community answered
(27 responses)- A93% (25)
- C4% (1)
- D4% (1)
Explanation
A digital signature provides cryptographic proof of origin, preventing the sender from denying they authored and sent the email - this is the essence of non-repudiation.
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