Which component of the CIA triad refers to limiting access so only authorized users can view sensitive information?

Question

BlackTom AI · Accepted Answer

Confidentiality is the principle that restricts access to sensitive information so that only authorized users can view or obtain it.

1) Relevant knowledge points and concepts:
- CIA triad: three core information security objectives—Confidentiality, Integrity, and Availability.
  - Confidentiality: ensuring information is accessible only to those authorized to have access.
  - Integrity: ensuring data is accurate and has not been altered improperly.
  - Availability: ensuring authorized users can access information and resources when needed.
- Authentication is a control/technique (verifying identity) that supports confidentiality and other goals but is not itself one of the three CIA principles.

2) Step-by-step reasoning:
- Read the phrase “limiting access so only authorized users can view sensitive information.” That directly describes preventing unauthorized disclosure, i.e., control of who may see data.
- Match that description to the CIA definitions: confidentiality explicitly addresses unauthorized disclosure and access control.
- Check the other options to ensure they do not match:
  - Authentication: a mechanism (e.g., passwords, biometrics) used to verify identity; it enables confidentiality but is not the overarching objective described.
  - Availability: concerned with uptime and ensuring access, the opposite emphasis (ensuring access rather than restricting it).
  - Integrity: concerned with preventing unauthorized modification and ensuring accuracy of data, not with restricting viewing access.

3) Calculations: none required.

4) Why the correct answer is correct:
- Confidentiality’s core goal is to prevent unauthorized disclosure of information and to ensure that only authorized parties can view sensitive data. The question’s phrasing is a textbook definition of confidentiality.

5) Why other options are incorrect (brief):
- Authentication: a supporting control, not the CIA principle asked for.
- Availability: about ensuring access, not restricting it.
- Integrity: about correctness and protection from tampering, not access control for viewing.

Conclusion: The correct answer is Confidentiality. This matches the provided answer.

Which component of the CIA triad refers to limiting access so only authorized users can view sensitive information?Single choice

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