International Journal For Multidisciplinary Research

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

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Role of Blockchain Technology in Intrusion Detection Systems: A Comprehensive Review and Future Directions

Author(s) Shaina Mahajan, Dr. Parveen Sadotra, Kailash Thakur
Country India
Abstract Intrusion Detection Systems (IDS) are foundational components of modern network security infrastructure. Despite decades of advancement, conventional IDS architectures remain vulnerable to single points of failure, data tampering, lack of transparency, and insufficient collaboration across organisational boundaries. Blockchain technology, with its inherent properties of decentralisation, immutability, transparency, and consensus-based trust, offers a compelling framework to address these longstanding limitations. This paper presents a comprehensive review of the integration of blockchain technology with IDS architectures, examining the fundamental principles, architectural paradigms, state-of-the-art proposals, and practical implementations reported in the literature. We analyse how blockchain enhances IDS across four critical dimensions: data integrity and tamper-resistance of alert logs, decentralised and collaborative threat intelligence sharing, smart-contract-driven automated response mechanisms, and privacy-preserving detection frameworks. We further discuss key challenges including scalability, latency, storage overhead, and consensus mechanism selection. Finally, we identify open research directions and propose a unified blockchain-IDS reference architecture suitable for heterogeneous network environments including IoT, cloud, and Software-Defined Networks (SDN).
Keywords Blockchain, Intrusion Detection System (IDS), Network Security, Decentralised Trust, Smart Contracts, Threat Intelligence, Immutability, Distributed Ledger Technology (DLT), Cyber Threat Sharing, IoT Security.
Field Computer > Data / Information
Published In Volume 8, Issue 3, May-June 2026
Published On 2026-05-26
DOI https://doi.org/10.36948/ijfmr.2026.v08i03.79763
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E-ISSN 2582-2160
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