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Abstract

Abstract- Cloud-native technologies like containers, micro services, and Kubernetes have transformed how applications are built and run. While they offer great speed, flexibility, and scalability, they also introduce new security challenges that traditional tools cant fully address. This review paper explores the latest approaches in cloud-native security, including container security, service mesh, runtime protection, and DevSecOps practices. It highlights how modern security tools are being designed to work within dynamic and fast-changing cloud environments. The paper also discusses common threats, realworld examples, and current best practices used by organizations to secure their cloud-native applications. Overall, this review aims to provide a clear and updated understanding of how cloud-native systems are protected today and where future improvements are needed. More and more companies are moving to cloud-native systems, which means they use modern technologies like containers and microservices to build and manage their applications. While this makes things faster and more flexible, it also introduces new security challenges. This paper looks at the latest ways to keep cloud-native environments safe, including strategies like verifying identities (zero-trust security), controlling access, protecting running applications, securing containers, detecting threats automatically, and following security rules. It also examines the unique risks that come with cloud-native setups and highlights the newest security techniques and best practices to deal with them. The goal is to show how security is adapting to fight cyber threats while still allowing businesses to take advantage of cloud-native technologys speed and efficiency.