ISC2 CC Access Controls Concepts Practice Question
A company wants to implement account lockout to prevent brute-force attacks. Which lockout threshold is most appropriate according to common best practices?
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
✓
5 failed attempts
Typical lockout thresholds are between 3 and 10 failed attempts to balance security and usability.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
5 failed attempts
Why this is correct
5 attempts is within the recommended range.
- ✗
1 failed attempt
Why it's wrong here
Too strict; likely to lock out legitimate users.
- ✗
No lockout, only logging
Why it's wrong here
Logging alone does not prevent brute-force attacks.
- ✗
20 failed attempts
Why it's wrong here
Too high; allows many brute-force guesses.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.