This is an article from DZone's 2022 Microservices and Containerization Trend Report.
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Securing cloud-native applications requires proper understanding of the interfaces (boundaries) being exposed by your microservices to various consumers. Proper tools and mechanisms need to be applied on each boundary to achieve the right level of security. Properly securing the infrastructure on which your application runs is also very important. This includes securing container images, securely running container runtimes, and properly configuring and using the container orchestration system (Kubernetes).