Quick Answer
The answer is the principle of least privilege. This is correct because the principle of least privilege example directly restricts data access to only what is necessary for an employee’s job functions, ensuring that users and systems receive the minimum permissions required to perform their tasks. By limiting access in this way, the company reduces its attack surface and contains potential damage from compromised accounts. On the ISC2 Certified in Cybersecurity CC exam, this concept tests your understanding of fundamental access control models; a common trap is confusing least privilege with separation of duties, which divides critical tasks among multiple people rather than limiting permissions. To remember it, think of the mnemonic “Need to Know, Need to Do”—least privilege grants only the data and actions required for a specific role, nothing more.
This CC practice question tests your understanding of security principles. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company's security policy states that employees should only have access to the data necessary to perform their job functions. This is an example of which principle?
Defense in depth
Why wrong: Defense in depth is a layered approach.
Separation of duties
Why wrong: Separation of duties divides tasks, not access levels.
Fail-safe
Why wrong: Fail-safe is about system failure.
Least privilege
Correct. Access is limited to what is needed.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Least privilege
The principle of least privilege dictates that users and systems should be granted only the minimum permissions necessary to perform their tasks. By restricting data access to job-required information, the company directly implements this security control, reducing the attack surface and limiting potential damage from compromised accounts.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Defense in depth
Why it's wrong here
Defense in depth is a layered approach.
Separation of duties
Why it's wrong here
Separation of duties divides tasks, not access levels.
Fail-safe
Why it's wrong here
Fail-safe is about system failure.
Least privilege
Why this is correct
Correct. Access is limited to what is needed.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
ISC2 often tests least privilege by contrasting it with separation of duties, where candidates mistakenly choose separation of duties because both involve restricting access, but separation of duties specifically splits conflicting tasks among different people to prevent collusion, not to limit data access per role.
Detailed technical explanation
Under the hood, least privilege is enforced via Access Control Lists (ACLs), Role-Based Access Control (RBAC) with granular permissions, or mandatory access controls (MAC) in systems like SELinux. In a real-world scenario, a database administrator might be granted SELECT only on specific tables rather than full DDL rights, preventing accidental or malicious schema changes. This principle is also codified in standards like NIST SP 800-53 (AC-6) and ISO 27001.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
What to study next
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FAQ
Security Principles — This question tests Security Principles — Read the scenario before looking for a memorised answer..
The correct answer is: Least privilege — The principle of least privilege dictates that users and systems should be granted only the minimum permissions necessary to perform their tasks. By restricting data access to job-required information, the company directly implements this security control, reducing the attack surface and limiting potential damage from compromised accounts.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
This CC practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CC exam.
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