This CCSP practice question tests your understanding of cloud data security. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 healthcare organization uses a cloud-based electronic health record (EHR) system that stores protected health information (PHI). They recently enabled direct API access for a new mobile application. Shortly after, the security team detected that a large volume of PHI was being exfiltrated through the API by an attacker who obtained valid API keys from a compromised developer workstation. The organization has data loss prevention (DLP) tools but they were not inspecting API traffic. The EHR system supports attribute-based access control (ABAC) and has logging for all API calls. The organization needs to prevent similar incidents while maintaining the functionality of the mobile app. Which course of action should be taken first?
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
✓
Rotate all API keys and implement key management best practices such as regular rotation and short-lived keys
The immediate priority is to revoke the compromised API keys and prevent further unauthorized access. Rotating all keys and implementing key management best practices, such as short-lived keys and regular rotation, directly addresses the root cause—the attacker's possession of valid keys from a compromised workstation. This action stops the exfiltration immediately while preserving the mobile app's functionality, as new keys can be issued to legitimate clients.
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.
✓
Rotate all API keys and implement key management best practices such as regular rotation and short-lived keys
Why this is correct
Stops current exfiltration and reduces future risk.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable DLP on API gateway to inspect outgoing data
Why it's wrong here
Important but not first; attack is ongoing.
✗
Restrict API access to specific IP addresses used by the mobile app's backend
Why it's wrong here
Mobile app IPs are not static; also does not address compromised keys.
✗
Implement ABAC policies to limit which data each API key can access
Why it's wrong here
Does not stop current attack if keys already have broad permissions.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose a long-term preventive control (like DLP or ABAC) first, failing to recognize that the immediate, critical step is to invalidate the compromised credentials to stop the active breach.
Detailed technical explanation
How to think about this question
API keys are often long-lived bearer tokens that, if leaked, grant the same access as the legitimate client until explicitly revoked. Short-lived keys (e.g., with a TTL of 15 minutes) reduce the window of exposure, and automated rotation via a secrets manager (e.g., HashiCorp Vault or AWS Secrets Manager) ensures that even if a key is compromised, it expires quickly. In practice, many organizations combine key rotation with OAuth 2.0 token exchange to further limit blast radius.
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.
Cloud Data Security — This question tests Cloud Data Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Rotate all API keys and implement key management best practices such as regular rotation and short-lived keys — The immediate priority is to revoke the compromised API keys and prevent further unauthorized access. Rotating all keys and implementing key management best practices, such as short-lived keys and regular rotation, directly addresses the root cause—the attacker's possession of valid keys from a compromised workstation. This action stops the exfiltration immediately while preserving the mobile app's functionality, as new keys can be issued to legitimate clients.
What should I do if I get this CCSP 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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