THE ROLE OF AI, ML, AND BLOCKCHAIN IN THE EVOLUTION OF NETWORK INTRUSION DETECTION SYSTEMS (KEY IJP************871)

• Akkaladevi Nandini,Mr. G. S. Udaya Kiran Babu,Dr. D William Albert

Abstract

As cyber threats grow in scale and sophistication, traditional Network Intrusion Detection Systems (NIDS) often struggle to detect and respond to emerging and unknown attacks effectively. This paper examines the transformative role of Artificial Intelligence (AI), Machine Learning (ML), and Blockchain technologies in the evolution of NIDS. By integrating intelligent analysis, adaptive threat recognition, and decentralized trust mechanisms, these technologies collectively address the inherent limitations of conventional systems. The result is a new generation of NIDS that are more robust, responsive, and capable of securing modern digital infrastructures against dynamic and persistent threats.