International Journal For Multidisciplinary Research

E-ISSN: 2582-2160   •   Impact Factor: 9.24

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Zero Trust Architecture Implementation in Hybrid Financial Technology Ecosystems: A Comprehensive Framework for Regulated Environments

Author(s) Sandeep Kamadi
Country United States
Abstract The financial services industry faces unprecedented cybersecurity challenges as organizations transition from perimeter-based security models to Zero Trust Architecture (ZTA) while maintaining regulatory compliance and operational continuity. This paper presents a comprehensive three-year longitudinal study of Zero Trust implementation in a Fortune 500 financial services organization operating across hybrid cloud environments. We introduce a novel phased implementation model that addresses the unique constraints of regulated financial ecosystems, including legacy system integration, real-time transaction processing requirements, and stringent compliance mandates. Our research contributes three key innovations: (1) identification and classification of financial services-specific Zero Trust implementation blockers, (2) development of a Contextual Trust Scoring (CTS) framework that integrates regulatory compliance requirements into access control decisions, and (3) quantitative analysis demonstrating measurable security improvements and ROI metrics across implementation phases. The proposed architecture leverages modern cloud-native technologies including microservices, containerization, and infrastructure as code while maintaining backwards compatibility with legacy systems. Implementation results demonstrate a 73% reduction in lateral movement risk, 89% improvement in anomaly detection accuracy, and sustained compliance with SOX, PCI-DSS, and NIST frameworks. This work provides actionable guidance for cybersecurity engineers implementing Zero Trust in complex, regulated environments where theoretical models often prove impractical.
Keywords Zero Trust Architecture, Financial Technology Security, Hybrid Cloud Security, Regulatory Compliance, Contextual Trust Scoring, DevSecOps, Multi-Cloud Security.
Field Engineering
Published In Volume 7, Issue 3, May-June 2025
Published On 2025-05-09
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E-ISSN 2582-2160
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