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Difficulty: EasyCIA Triad and Non-Repudiation

An enterprise security manager needs to ensure that high-priority system change requests sent via email cannot be denied by the author after submission. Which of the following security concepts specifically addresses this requirement?

  1. Non-repudiationAnswer
  2. B
    Confidentiality
  3. C
    Authorization
  4. D
    Preventive control

Answer

Non-repudiation
Non-repudiation provides proof of origin and integrity, ensuring that a party to a transaction or communication cannot deny sending a message.

Step-by-Step Solution

1
Analyze the scenario requirement
The requirement focuses on preventing an author from denying that they submitted an email request.
The core objective is establishing proof of message origin and authenticity.
2
Evaluate candidate security concepts
Non-repudiation provides cryptographic assurance that binds sender identity to the message payload, preventing denial of authorship.
Digital signatures supporting non-repudiation ensure both authenticity and origin validation.

Key Concept

Non-Repudiation in Security Architecture
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Topics

CIA Triad and Non-Repudiation

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