My AI Financial Agent is now live and serving traffic via CloudFront. This is exciting, but it also means my Amazon Bedrock tokens and Plaid credits are a potential target for bots. 🤖💸
In a serverless world, an unprotected API is a blank check for attackers. Today I spent Day 44 configuring AWS WAF—the "bouncer" at the door of my application.
The Implementation Details:
Rate Limiting: I configured a rule to block any IP address that exceeds 50 requests within a 5-minute window. This is enough for a human user but a lethal barrier for basic scrapers.
Global Protection: Since it's linked to CloudFront, traffic is filtered at AWS Edge locations, keeping the "garbage" traffic far away from my Lambda.
Key Lesson: In serverless, security = cost control. Every blocked bot represents real money saved in my AWS monthly bill.
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