A company has developed a serverless web application on AWS, which includes components such as Amazon S3 for storage, API Gateway for managing APIs, Lambda functions for backend processing, and RDS for MySQL for database services. The application's source code, which consists of AWS SAM templates and Python scripts, is stored in AWS CodeCommit. A recent security audit identified that database authentication credentials are hardcoded within the CodeCommit repositories. To enhance security, a DevOps engineer is tasked with implementing a solution that automatically detects and prevents the inclusion of hardcoded secrets in the code. Which of the following solutions offers the highest level of security for addressing this issue? | AWS Certified DevOps Engineer - Professional Quiz