The answer is to disable the compromised access keys using the IAM dashboard or CLI. This is the correct first action because the immediate priority in an AWS access key compromise is to invalidate the stolen credentials, stopping the attacker from making further unauthorized API calls. Disabling the keys via `aws iam update-access-key --status Inactive` directly revokes the attacker’s authentication token without disrupting other legitimate users or services, making it the fastest containment step. On the Systems Security Certified Practitioner SSCP exam, this scenario tests your understanding of the incident response phase—specifically containment—and often appears as a trap where candidates might mistakenly rotate keys or delete the user first, which takes longer and could cause collateral damage. Remember the memory tip: “Disable before rotate—stop the bleed before you treat the wound.”
SSCP Incident Response and Recovery Practice Question
This SSCP practice question tests your understanding of incident response and recovery. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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 uses AWS for critical workloads. An analyst notices unauthorized API calls from an IP address outside the company. The logs show that the attacker used stolen access keys belonging to an IAM user with administrative privileges. The incident response team must contain the breach as quickly as possible. The analyst has access to the AWS Management Console and can use the CLI. The team is following the incident response plan. Which action should be taken FIRST to prevent further unauthorized actions?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Disable the compromised access keys using the IAM dashboard or CLI.
The immediate priority in an access key compromise is to invalidate the stolen credentials to stop the attacker from making further API calls. Disabling the compromised access keys via the IAM dashboard or CLI (using `aws iam update-access-key --status Inactive`) is the fastest containment action that directly revokes the attacker's authentication token without disrupting other legitimate users or services.
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.
✗
Create a new security group to block the attacker's source IP at the network level.
Why it's wrong here
Incorrect: Blocking an IP is not effective because the attacker can use different IPs; also it does not revoke the keys.
✓
Disable the compromised access keys using the IAM dashboard or CLI.
Why this is correct
Correct: This directly stops the attacker's ability to authenticate with those keys.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Delete the compromised IAM user immediately.
Why it's wrong here
Incorrect: Deleting the user may affect services or resources attached to that user; disabling keys is less disruptive.
✗
Rotate all IAM user access keys across the entire AWS account.
Why it's wrong here
Incorrect: This is broad and time-consuming; it should be done after initial containment.
Common exam traps
Common exam trap: answer the scenario, not the keyword
ISC2 often tests the principle of least disruption during containment — candidates may choose to delete the user or block the IP, but the correct first step is to disable the specific compromised credential to stop the attack without breaking other dependencies.
Detailed technical explanation
How to think about this question
When an access key is compromised, the attacker can make signed AWS API calls from anywhere using the key ID and secret. Disabling the key via `aws iam update-access-key` immediately invalidates the signature-based authentication, as AWS checks the key's status (`Active` vs. `Inactive`) during request signing. In a real-world scenario, the incident response team would also monitor for any new API calls after disabling the key to confirm containment, then proceed to rotate the key (create a new one and update applications) and investigate the root cause.
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.
TExam Day Tips
→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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Incident Response and Recovery — This question tests Incident Response and Recovery — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Disable the compromised access keys using the IAM dashboard or CLI. — The immediate priority in an access key compromise is to invalidate the stolen credentials to stop the attacker from making further API calls. Disabling the compromised access keys via the IAM dashboard or CLI (using `aws iam update-access-key --status Inactive`) is the fastest containment action that directly revokes the attacker's authentication token without disrupting other legitimate users or services.
What should I do if I get this SSCP question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
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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