AWS Certified Security – Specialty (SCS-C03) — Question 29

A security engineer for a company needs to design an incident response plan that addresses compromised IAM user account credentials. The company uses an organization in AWS Organizations and AWS IAM Identify Center to manage user access. The company uses a delegated administrator account to implement AWS Security Hub. The delegated administrator account contains an organizational trail in AWS CloudTrail that logs all events to an Amazon S3 bucket. The company has also configured an organizational event data store that captures all events from the trail.
The incident response plan must provide steps that the security engineer can take to immediately disable any compromised IAM user when the security engineer receives a notification of a security incident.
The plan must prevent the IAM user from being used in any AWS account. The plan must also collect all AWS actions that the compromised IAM user performed across all accounts in the previous 7 days.
Which solution will meet these requirements?

Answer options

• A. Disable the compromised IAM user in the organization management account. Use Amazon Athena to query the organizational CloudTrail logs in the S3 bucket for actions that the IAM user performed in the previous 7 days.
• B. Remove all IAM policies that are attached to the IAM user in the organization management account. Use Security Hub to query the CloudTrail logs for actions that the IAM user performed in the previous 7 days.
• C. Remove any permission sets that arc assigned to the IAM user in IAM Identity Center. Use Amazon CloudWatch Logs Insights to directly query the organizational CloudTrail logs in the S3 bucket for actions that the IAM user performed m the previous 7 days.
• D. Disable the IAM user's access in IAM Identity Center. Use CloudTrail to query the organizational event data store for actions that the IAM user performed in the previous 7 days.

Correct answer: D

Explanation

The correct answer is D because disabling the IAM user's access in IAM Identity Center ensures that the user cannot access any AWS accounts. Additionally, using CloudTrail to query the organizational event data store allows for the retrieval of all actions the compromised IAM user performed in the last 7 days. The other options either fail to completely disable the user or do not utilize the optimal methods for tracking user actions.