Modernizing with Confidence: Strategies for Enhancing Cybersecurity and Compliance in Legacy System Upgrade
DOI:
https://doi.org/10.63282/3050-9246.IJETCSIT-V4I4P105Keywords:
Legacy Modernization, Zero Trust Architecture, Compliance-as-Code, Cybersecurity, Vulnerability Management, SIEM, DevSecOpsAbstract
Legacy systems form the backbone of numerous critical business operations but increasingly pose cybersecurity and compliance risks due to outdated technologies and lack of visibility. This article offers a comprehensive and technical framework for modernizing legacy systems with confidence. We introduce advanced strategies including Zero Trust Architecture (ZTA), Compliance-as-Code (CaC), automated vulnerability remediation, real-time telemetry integration, and threat modeling. These approaches support proactive defense, regulatory adherence, and long-term operational resilience. With detailed implementation guidance and use-case mapping, this paper serves as a practical blueprint for secure, compliant, and scalable legacy system modernization
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