A finance company has a web application that generates credit reports for customers. The company hosts the frontend of the web application on a fleet of Amazon EC2 instances that is associated with an Application Load Balancer (ALB). The application generates reports by running queries on an Amazon RDS for SQL Server database. The company recently discovered that malicious traffic from around the world is abusing the application by submitting unnecessary requests. The malicious traffic is consuming significant compute resources. The company needs to address the malicious traffic. Which solution will meet this requirement?