Zero trust security models in cyber security

Abstract

With cloud computing and remote work, the complexity of cybersecurity threats has increased. The perimeter-based security model, which assumes that everything inside a network perimeter is trusted, is no longer sufficient to protect modern systems [1]. The Zero Trust Security Model eliminates implicit trust and requires explicit identity verification for all access requests [2]. This paper will describe the principles, architecture, implementation, advantages and disadvantages, as well as future directions for Zero Trust Security. The model operates under a principle of “Never Trust, Always Verify,” which continuously authenticates and authorizes users, devices and applications [3]. An identity provider, policy engine, and micro-segmentation mechanisms will also be evaluated to understand their convergence in enhancing security within a system. In this study, Zero Trust architecture is evaluated for reducing internal as well as external security risks by minimizing attack surfaces in addition to enhancing compliance with regulatory standards [4]. In addition, this study highlights some of the challenges faced in implementing Zero Trust architecture, which include high costs in addition to complexities in integration and user experience issues. Moreover, this study also highlights some of the emerging trends in enhancing security using AI-based security solutions in addition to using blockchain-based identity systems to further enhance Zero Trust architecture in the future [5].