ISC2 CC Network Security Practice Question
An attacker captures network traffic using Wireshark and reads unencrypted emails. Which security goal is most directly compromised?
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
✓
Confidentiality
Sniffing captures sensitive data, violating confidentiality.
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 it's wrong here
Integrity involves data being unaltered; here data is simply read.
- ✗
Availability
Why it's wrong here
Availability is about access; data is still accessible.
- ✗
Non-repudiation
Why it's wrong here
Non-repudiation ensures actions cannot be denied; not directly affected.
- ✓
Confidentiality
Why this is correct
Confidentiality is breached when data is read by an unauthorized party.
Go deeper
Related to this question
Learn chapter
Introduction to Security Principles
Key term
Wireshark
Wireshark is a free, open-source network protocol analyzer that captures and inspects data packets traveling over a computer network in real time.
Key term
Confidentiality
Confidentiality means keeping sensitive information secret and accessible only to authorized people or systems.
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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.