Zero Trust Architecture in Hybrid Cloud: Theory and Implementation

Sandeep Parshuram Patil

Abstract: The accelerated adoption of hybrid cloud environments has challenged traditional perimeter-based security models, which were designed for static, centralized infrastructures. In contrast, hybrid cloud ecosystems are dynamic, decentralized, and integrate multiple public and private platforms, thereby expanding the attack surface and complicating governance. Zero Trust Architecture (ZTA) has emerged as a transformative framework to address these challenges, guided by the principle of never trust, always verify. This article examines the theoretical foundations of Zero Trust and its practical implementation within hybrid cloud contexts. I analyze how ZTA principles least privilege, micro-segmentation, continuous verification, and adaptive access control directly align with the operational demands of hybrid cloud. The study further explores standards such as NIST SP 800-207 and industry-specific frameworks, mapping their applicability to multi-cloud and on-premises integrations. An implementation roadmap is proposed, emphasizing identity-centric security, data protection, automation, and AI/ML-driven monitoring. Real-world use cases and case studies illustrate both the benefits and challenges of deploying ZTA, including improved security posture, regulatory compliance, and operational agility, as well as cost and cultural barriers. The article concludes by highlighting future directions, including quantum-safe cryptography, integration with edge and IoT ecosystems, and adaptive threat intelligence. By bridging theory and practice, this work offers a comprehensive guide for organizations pursuing resilient security in hybrid cloud environments.

Keywords: Zero Trust Architecture (ZTA), Hybrid Cloud Security, Cloud Computing, Micro-Segmentation, Data-Centric Security, Multi-Cloud Integration, Adaptive Access Control

How to Cite?: Sandeep Parshuram Patil, "Zero Trust Architecture in Hybrid Cloud: Theory and Implementation", Volume 9 Issue 5, May 2020, International Journal of Science and Research (IJSR), Pages: 1911-1915, https://www.ijsr.net/getabstract.php?paperid=SR20522094157, DOI: https://dx.doi.org/10.21275/SR20522094157