System Protection with AWS WAF

Although scalable cloud systems (Serverless/ECS) are powerful, without a protective shield, you could face massive bills due to Distributed Denial of Service (DDoS) attacks or AI API (Bedrock) spamming.

In this chapter, we will set up AWS WAF (Web Application Firewall) to analyze every traffic flow and block malicious requests right at the CloudFront Edge Network, long before they can reach your Backend servers.

Contents

• Create Web ACL
• Configure Ruleset
• Verify Firewall

Why is this content important?

• Prevent Resource Exhaustion: Stop bots from spamming product API calls or the AI Chatbot.
• Protect against SQL vulnerabilities: Block malicious code injection (SQL Injection) attempts targeting your RDS database.
• Edge Security: Attaching WAF directly to CloudFront eliminates global malicious traffic without slowing down the Backend system.