Fastly's next-gen Web Application Firewall (WAF), formerly known as Signal Sciences, integrates with Kong Konnect to enhance the security of API services by blocking malicious requests. The collaboration leverages Kong Gateway's enterprise API management capabilities and focuses on Layer 7 application security. Fastly's system operates by inspecting incoming requests for potential threats, such as SQL injections, and sanitizes them by redacting sensitive information. The system also aggregates attack data through a cloud agent and uses threat intelligence feeds to inform its security measures. Practical applications of this integration include preventing malicious SQL injections, thwarting FinTech account enumeration attacks, and stopping account takeover attempts by setting customizable rules that define conditions for blocking or limiting requests. These rules can be tailored based on parameters such as IP address, request method, and response codes, and monitored through the Fastly management console, offering users detailed insights and control over the security of their API environments.