API Security in the Age of Microservices: Protecting Modern Application Architectures
Update (July 2026): This guide has been refreshed with the latest OWASP API Security Top 10 (2025 edition), updated threat landscape data, and modern security patterns for Kubernetes-native and serverless API deployments. The shift toward microservices architectures has fundamentally transformed application security landscapes. While monolithic applications typically featured well-defined security perimeters, microservices create hundreds or thousands of API endpoints that must be individually secured. This architectural evolution demands a complete rethinking of security strategies, moving from perimeter-based protection to comprehensive API-centric security models. ...