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ISC2 CC Practice Question: A company's security policy requires that…
A company's security policy requires that employees must change their passwords every 90 days and passwords must be at least 12 characters. Which security principle is being enforced?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Integrity
Password complexity and expiration policies enforce the integrity of authentication. By requiring strong, regularly changed passwords, the system ensures that only authorized users can access resources, protecting the integrity of the access control mechanism. Confidentiality (D) is about secrecy of data, but the primary goal here is to prevent unauthorized access, which upholds integrity. Availability (B) and non-repudiation (C) are not directly enforced by this policy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Integrity
Why this is correct
Regularly changing and strengthening passwords ensures that credentials remain valid and are not compromised, which upholds integrity.
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Availability
Why it's wrong here
Password policies do not directly affect system availability.
- ✗
Non-repudiation
Why it's wrong here
Non-repudiation is about proving actions, not password management.
- ✗
Confidentiality
Why it's wrong here
While passwords protect confidentiality, the policy specifically aims to maintain the integrity of the authentication process.
Go deeper
Related to this question
Learn chapter
Introduction to Security Principles
Key term
Authentication
Authentication is the process of verifying that someone or something is who or what it claims to be before granting access to a system or resource.
Key term
Security policy
A security policy is a formal set of rules and guidelines that an organization establishes to protect its information assets and technology resources.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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