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A global media company uses a fleet of Amazon EC2 instances (behind an Application Load Balancer) to power its video streaming application. To improve the performance of the application, the data engineering team has also created an Amazon CloudFront distribution with the Application Load Balancer as the custom origin. The security team at the company has noticed a spike in the number and types of SQL injection and cross-site scripting attack vectors on the application. Which of the following solutions would you recommend as the MOST effective in countering these malicious attacks?