AWS Certified Security – Specialty (SCS-C02) — Question 187

A company’s security engineer wants to receive an email alert whenever Amazon GuardDuty, AWS Identity and Access Management Access Analyzer, or Amazon Macie generate a high-severity security finding. The company uses AWS Control Tower to govern all of its accounts. The company also uses AWS Security Hub with all of the AWS service integrations turned on.

Which solution will meet these requirements with the LEAST operational overhead?

Answer options

• A. Set up separate AWS Lambda functions for GuardDuty, IAM Access Analyzer, and Macie to call each service's public API to retrieve high-severity findings. Use Amazon Simple Notification Service (Amazon SNS) to send the email alerts. Create an Amazon EventBridge rule to invoke the functions on a schedule.
• B. Create an Amazon EventBridge rule with a pattern that matches Security Hub findings events with high severity. Configure the rule to send the findings to a target Amazon Simple Notification Service (Amazon SNS) topic. Subscribe the desired email addresses to the SNS topic.
• C. Create an Amazon EventBridge rule with a pattern that matches AWS Control Tower events with high severity. Configure the rule to send the findings to a target Amazon Simple Notification Service (Amazon SNS) topic. Subscribe the desired email addresses to the SNS topic.
• D. Host an application on Amazon EC2 to call the GuardDuty. IAM Access Analyzer, and Macie APIs. Within the application, use the Amazon Simple Notification Service (Amazon SNS) API to retrieve high-severity findings and to send the findings to an SNS topic. Subscribe the desired email addresses to the SNS topic.

Correct answer: B

Explanation

The correct answer is B because it directly utilizes Amazon EventBridge with a rule that matches Security Hub's high-severity findings, ensuring efficient integration with minimal management. The other options involve more complex setups, such as multiple Lambda functions or an EC2 application, which would increase operational overhead.