Quick Answer
The answer is the location of the affected individuals, as data breach notification jurisdiction is determined by where the data subjects reside, not where the company or its systems are based. This is because privacy regulations like GDPR and state-level laws impose obligations based on the residency of the person whose personally identifiable information (PII) was compromised, making the individual’s jurisdiction the primary trigger for notification. On the Certified Information Security Manager CISM exam, this concept tests your understanding of regulatory compliance and incident response planning, often appearing in scenario-based questions where you must prioritize legal obligations over operational details. A common trap is focusing on where the data is stored or where the breach originated, but the key is that notification laws follow the data subject. Remember the mnemonic “Follow the Person, Not the Processor” to keep the affected individual’s location as your anchor for determining which regulatory bodies to inform.
This CISM practice question tests your understanding of incident management. 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 multinational corporation experiences a security breach involving customer PII. The incident response team needs to determine notification requirements. Which factor is MOST important in deciding which regulatory bodies to inform?
Location of the affected individuals
Breach notification laws are based on the data subjects' residence.
Location of the attacker
Why wrong: Attacker location does not impose notification duties.
Location of the company's CIO
Why wrong: CIO location is not a regulatory factor.
Location of the data custodian
Why wrong: Data custodian location may not be the affected individuals' jurisdiction.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Location of the affected individuals
Option D is correct because notification requirements depend on the jurisdiction of the affected individuals. Option A is wrong because the data custodian's location is not always relevant. Option B is wrong because the CIO's location is irrelevant. Option C is wrong because attacker location does not determine notification obligations.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Location of the affected individuals
Why this is correct
Breach notification laws are based on the data subjects' residence.
Related concept
Static NAT maps one inside address to one outside address.
Location of the attacker
Why it's wrong here
Attacker location does not impose notification duties.
Location of the company's CIO
Why it's wrong here
CIO location is not a regulatory factor.
Location of the data custodian
Why it's wrong here
Data custodian location may not be the affected individuals' jurisdiction.
Common exam traps
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CISM NAT questions on configuration and troubleshooting.
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FAQ
Incident Management — This question tests Incident Management — Static NAT maps one inside address to one outside address..
The correct answer is: Location of the affected individuals — Option D is correct because notification requirements depend on the jurisdiction of the affected individuals. Option A is wrong because the data custodian's location is not always relevant. Option B is wrong because the CIO's location is irrelevant. Option C is wrong because attacker location does not determine notification obligations.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CISM NAT questions on configuration and troubleshooting.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 24, 2026
This CISM practice question is part of Courseiva's free ISACA 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 CISM exam.
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