A Unified Approach of Blockchain Distributed Systems for Protecting Health Data Privacy and Security From Cyber Attacks

Abstract

In an uncertain world filled with cyberthreats, blockchain has proven to be a revolutionary technology of significant value to most industries. While blockchain is used extensively in the fields of energy, finance and governance, healthcare is among the key sectors whose applications have been most evident as far as its adoption into these sectors is concerned. Since data is currently regarded as both an asset and currency, security has emerged as a key issue especially in healthcare as more and more data breaches have emphasized the need for enhanced planning, requirements analysis and implementation of strong cybersecurity models. This paper introduces a cloud-based blockchain architecture The approach organizes network participants into clusters, with each cluster maintaining a single copy of the blockchain. This design introduces a new blockchain architecture tailored for secure healthcare data management, significantly lowering both computational demands and communication overhead particularly when compared with conventional Bitcoin networks and existing lightweight blockchain models, while at the same time, investigating how the proposed design adequately mitigates known security threats. Experimental results show that, with increasing number of nodes, the proposed model accelerates the updates of ledger, It achieves a 63% reduction in computational load while also decreasing network traffic by 10%.