Securing Serverless and Edge Apps with Arcjet

Serverless and edge architectures distribute execution across many entry points, making traditional perimeter-based security insufficient. Each function or edge handler becomes its own exposed endpoint, requiring application-layer security that runs alongside code rather than at a centralized gateway. Arcjet is presented as a tool that integrates directly into serverless functions, edge handlers, and microservices to provide identity-aware rate limiting, abuse prevention, and WAF protection that scales horizontally without creating bottlenecks. The recommended approach is defense-in-depth: infrastructure controls at the network boundary combined with application-layer enforcement inside each service.