The primary risk is that exposing the token vault to the internet may violate PCI DSS requirements and lead to a data breach. This is because the token vault contains the sensitive mapping between tokens and actual Primary Account Numbers (PANs); while tokenization renders card data unreadable in transit or at rest, the vault itself becomes the single point of failure. Internet exposure creates a direct attack surface for unauthorized access, directly violating PCI DSS Requirement 3.4, which mandates stored cardholder data be rendered unreadable. On the CRISC exam, this scenario tests your ability to distinguish between a control’s intended benefit and its implementation risk—a common trap is assuming tokenization eliminates all risk, forgetting the vault’s exposure. Remember the memory tip: “Token hides the PAN, but the vault holds the keys; expose the vault, and you lose the keys to the kingdom.”
CRISC IT Risk Identification Practice Question
This CRISC practice question tests your understanding of it risk identification. 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 retail company is planning to launch a mobile payment app. The risk team is identifying potential risks related to payment card industry (PCI) compliance. The app will process credit card numbers. The development team has implemented tokenization to replace card numbers with tokens, but the token vault is located on-premises. The network architect proposes exposing the token vault to the internet for mobile app access. The compliance officer is concerned about PCI DSS requirements. The risk manager needs to identify the highest risk related to this setup. What is the primary risk?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Exposure of the token vault to the internet may violate PCI DSS requirements and lead to a data breach.
The primary risk is that exposing the token vault to the internet directly violates PCI DSS Requirement 3.4, which mandates that stored cardholder data must be rendered unreadable. While tokenization replaces PANs with tokens, the vault itself contains the sensitive PAN-to-token mapping. Internet exposure of this vault creates an attack surface for unauthorized access, potentially leading to a massive data breach and non-compliance penalties.
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.
✗
Potential loss of tokens due to hardware failure.
Why it's wrong here
Hardware failure is a minor risk compared to security exposure.
✓
Exposure of the token vault to the internet may violate PCI DSS requirements and lead to a data breach.
Why this is correct
Direct exposure to internet is a major security and compliance risk.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Increased latency due to tokenization.
Why it's wrong here
Latency is a performance issue, not a security risk.
✗
High cost of tokenization infrastructure.
Why it's wrong here
Cost is a financial concern, not the primary risk.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may focus on operational risks like latency or cost, but the CRISC exam emphasizes that PCI DSS compliance and data breach exposure are the highest risks when cardholder data or its mapping is exposed to the internet.
Detailed technical explanation
How to think about this question
Tokenization replaces PANs with surrogates (tokens) stored in a vault, but the vault itself is a high-value target containing the original PANs. PCI DSS Requirement 3.4 requires rendering PAN unreadable anywhere it is stored; exposing the vault to the internet without proper segmentation, encryption, and access controls (e.g., compensating controls per PCI DSS 3.6.1) violates this. In practice, a token vault should reside in a highly restricted network segment (e.g., CDE) with no direct internet connectivity, and mobile apps should use API gateways with strong authentication to request tokenization services.
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 practitioner preparing for the CRISC exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
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.
IT Risk Identification — This question tests IT Risk Identification — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Exposure of the token vault to the internet may violate PCI DSS requirements and lead to a data breach. — The primary risk is that exposing the token vault to the internet directly violates PCI DSS Requirement 3.4, which mandates that stored cardholder data must be rendered unreadable. While tokenization replaces PANs with tokens, the vault itself contains the sensitive PAN-to-token mapping. Internet exposure of this vault creates an attack surface for unauthorized access, potentially leading to a massive data breach and non-compliance penalties.
What should I do if I get this CRISC 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: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
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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