Bilani, Selvio2026-05-112026-05-11Bilani, S. (2025). Modelet e sigurisë në cloud computing: Analizë e koncepteve, praktikave dhe sfidave bashkëkohorehttps://repository.aab-edu.net/handle/123456789/1184Studimi analizon modelet dhe sfidat e sigurisë në Cloud Computing.With the rapid advancement of cloud technologies, organizations are increasingly migrating data and services to cloud environments, creating an urgent need for advanced security frameworks. This thesis provides an in-depth analysis of the primary security models used in Cloud Computing, focusing on the Zero Trust architecture, the Shared Responsibility Model, and the Defense-in-Depth approach. It also examines security reference models developed by standardization bodies such as NIST and ISO, highlighting their role in building secure cloud infrastructures. Through a comparative approach, the paper evaluates how these models are implemented in leading cloud platforms such asAmazon Web Services (AWS) and Microsoft Azure, and discusses the challenges that arise during their practical application. The primary objective is to offer a clear framework for IT professionals and researchers seeking to understand, apply, and improve cloudsecurity mechanisms. The study concludes with recommendations for organizations aiming to strengthen their data protection strategies in a sustainable and effective manner.otherCloud Computing securityZero TrustShared Responsibility ModelDefense-in-DepthNISTISO/IEC 27017AWSMicrosoft Azuredata protectioncloud security challenges.Thesis