Quick Answer
Amazon EventBridge is the correct choice because AWS Security Hub automatically publishes all findings to its default EventBridge bus as events, allowing you to create a rule that matches the “Security Hub Findings – Imported” event pattern and directly targets a Lambda function for invocation. This native integration is the recommended, serverless approach for event-driven responses, as it eliminates the need for polling or custom middleware. On the AWS Certified Security Specialty SCS-C02 exam, this concept tests your understanding of how Security Hub integrates with event-driven services; a common trap is confusing EventBridge with Amazon SNS or SQS, but remember that EventBridge is the default bus for Security Hub findings and provides built-in filtering and routing. The exam often presents scenarios where you must choose the service that triggers a Lambda function without additional infrastructure, and EventBridge’s rule-based pattern matching is the key differentiator. Memory tip: think “EventBridge is the bridge between Security Hub and Lambda” — it carries the finding event directly to your function.
This SCS-C02 practice question tests your understanding of threat detection and incident response. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 wants to automatically trigger a Lambda function when a new security finding is generated in AWS Security Hub. Which service should be used to invoke the Lambda function?
Amazon Simple Notification Service (SNS)
Why wrong: SNS can send notifications but is not the direct trigger; EventBridge is preferred.
AWS Security Hub itself
Why wrong: Security Hub does not have native triggers; it integrates via EventBridge.
Amazon EventBridge
EventBridge can match Security Hub findings and invoke Lambda.
AWS CloudTrail
Why wrong: CloudTrail logs API calls, but does not forward Security Hub findings.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Amazon EventBridge
Amazon EventBridge is the correct service because AWS Security Hub automatically sends all findings to the default EventBridge bus as events. You can create an EventBridge rule that matches the 'Security Hub Findings - Imported' event pattern and targets a Lambda function for invocation. This is the native, recommended integration for event-driven responses to Security Hub findings.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Amazon Simple Notification Service (SNS)
Why it's wrong here
SNS can send notifications but is not the direct trigger; EventBridge is preferred.
AWS Security Hub itself
Why it's wrong here
Security Hub does not have native triggers; it integrates via EventBridge.
Amazon EventBridge
Why this is correct
EventBridge can match Security Hub findings and invoke Lambda.
Related concept
Read the scenario before looking for a memorised answer.
AWS CloudTrail
Why it's wrong here
CloudTrail logs API calls, but does not forward Security Hub findings.
Common exam traps
The trap here is that candidates may think Security Hub can directly invoke Lambda or that SNS is the primary integration, but AWS explicitly designed EventBridge as the central event bus for all Security Hub findings to enable flexible, rule-based routing.
Detailed technical explanation
Under the hood, Security Hub publishes findings to the default EventBridge bus with a detail-type of 'Security Hub Findings - Imported' and a source of 'aws.securityhub'. EventBridge rules use event pattern matching to filter for specific finding types (e.g., 'TTPs' or severity levels) before routing to targets like Lambda. This decoupled architecture allows for scalable, near-real-time response without polling, and supports retry policies and dead-letter queues for failed invocations.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
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Threat Detection and Incident Response — study guide chapter
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FAQ
Threat Detection and Incident Response — This question tests Threat Detection and Incident Response — Read the scenario before looking for a memorised answer..
The correct answer is: Amazon EventBridge — Amazon EventBridge is the correct service because AWS Security Hub automatically sends all findings to the default EventBridge bus as events. You can create an EventBridge rule that matches the 'Security Hub Findings - Imported' event pattern and targets a Lambda function for invocation. This is the native, recommended integration for event-driven responses to Security Hub findings.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This SCS-C02 practice question is part of Courseiva's free Amazon Web Services 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 SCS-C02 exam.
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