The answer is unauthorized authentication. When a private key is exposed in a public repository, an attacker can immediately use that key to authenticate as the legitimate owner, bypassing password or multi-factor controls to gain unauthorized access to systems, data, or network resources. This risk is more direct than a man-in-the-middle attack, which requires active interception of communications, and it specifically undermines authentication rather than broadly impacting confidentiality or integrity. On the CISSP exam, this scenario tests your understanding of asymmetric cryptography and the principle that private keys must remain secret; a common trap is confusing the immediate authentication threat with longer-term risks like session hijacking. Remember the mnemonic “PKE = Auth Breach First” — a private key exposure always puts authentication at immediate risk before any other security property.
CISSP Security and Risk Management Practice Question
This CISSP practice question tests your understanding of security and risk management. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Refer to the exhibit. A security analyst finds the above in a configuration file stored in a public GitHub repository. What is the most immediate risk?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Unauthorized authentication
The private key can be used to authenticate as the key owner, enabling unauthorized access to systems or data. Man-in-the-middle attacks are a risk if keys are compromised but less immediate. Loss of confidentiality is a broad category. Integrity violation is not the primary concern.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Man-in-the-middle attacks
Why it's wrong here
Possible but not the most immediate risk; the key could be used for direct authentication.
✗
Loss of confidentiality
Why it's wrong here
A consequence but not the specific risk; the key exposure leads to authentication bypass.
✓
Unauthorized authentication
Why this is correct
The private key allows anyone to impersonate the legitimate owner.
Related concept
Read the scenario before looking for a memorised answer.
✗
Integrity violation
Why it's wrong here
Not directly related; the key enables authentication, not data modification.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CISSP question in full detail.
Identify which CISSP exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Security and Risk Management — This question tests Security and Risk Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Unauthorized authentication — The private key can be used to authenticate as the key owner, enabling unauthorized access to systems or data. Man-in-the-middle attacks are a risk if keys are compromised but less immediate. Loss of confidentiality is a broad category. Integrity violation is not the primary concern.
What should I do if I get this CISSP question wrong?
Identify which CISSP exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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