A security engineer must implement a solution that automatically re-enables AWS CloudTrail across multiple AWS Regions if it is ever turned off. What is the most efficient way to accomplish this?

AWS Config with a managed rule and the AWS-EnableCloudTrail remediation action is the most efficient solution. AWS Config continuously monitors resource configurations against desired states. The cloudtrail-enabled managed rule detects if CloudTrail is disabled, and the AWS-EnableCloudTrail remediation action automatically re-enables it, ensuring compliance across all Regions. The EventBridge and CloudWatch alarm options require custom Lambda functions and more complex setup to achieve the same outcome, making them less efficient. AWS Trusted Advisor provides recommendations but does not offer automatic remediation capabilities.