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Open access 2026

Architectural Refactoring Strategies for Legacy Critical Digital Infrastructure (ARF-CDI): A Roadmap for Secure Modernization

Critical digital infrastructure (CDI) in energy, water, healthcare, and telecommunications still runs on architectures designed decades ago, when networks were isolated and adversaries were not part of the design brief. Operators have responded to rising attack activity by layering controls onto these architectures. Th...

Cornelius Chipasha, S. Tembo, Mulundumina Shimaponda · 0 citations
Open access 2026

A Theoretical Framework for Evaluating Security Risks in Cloud, Edge and Fog Computing

The theoretical framework presents a broad base of security risk assessment in the contemporary distributed computing paradigms and allows the proactive security management process, allows the formalisation of the process of risk assessment, and informs the decision-making process regarding infrastructure security inve...

K. Mulenga, S. Tembo · 0 citations

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