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Quantum Machine Learning in Cybersecurity: A Hybrid Framework for Advanced Threat Detection and Classification

Nandala Narayanamma, Karnam Madhavi

Published Aug 1, 2026• 0 citations
Publisher
DOI
10.1109/icstem68144.2026.11735430

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The growing complexity and velocity of cyber threats in high-security environments such as defense, critical infrastructure, and intelligence networks necessitates a paradigm shift in threat detection capabilities. Traditional cybersecurity systems, including those enhanced by classical machine learning algorithms, often struggle to process and classify massive volumes of heterogeneous and encrypted data in real time. This shortcoming is particularly evident in the context of advanced persistent threats (APTs), polymorphic malware, and insider attacks, which require rapid adaptation and heightened sensitivity to anomalous behavior.Quantum Machine Learning (QML), an emerging interdisciplinary field at the intersection of quantum computing and artificial intelligence, presents a promising avenue for augmenting threat detection mechanisms. Leveraging quantum phenomena such as superposition and entanglement, QML models offer potential advantages in processing speed, pattern recognition, and feature space transformation that can outperform their classical counterparts in high-dimensional data analysis. This paper explores the application of QML to threat detection in high-security networks, proposing a hybrid quantum-classical framework that integrates quantum-enhanced classifiers such as quantum support vector machines and variational quantum circuits into existing detection pipelines.The study outlines a technical overview of quantum computing principles relevant to cybersecurity, critically evaluates existing detection architectures, and presents simulation-based case studies to assess performance metrics, including detection accuracy and false positive rates. It further examines the limitations of current quantum hardware, algorithmic constraints, and emerging ethical and operational considerations. The findings suggest that while QML is still constrained by hardware maturity and integration complexity, it holds transformative potential for proactive, intelligent, and adaptive cyber defense systems in high-stakes environments. This research contributes to ongoing efforts to future-proof cybersecurity infrastructure against both classical and post-quantum threat landscapes.
The usual cybersecurity techniques are finding it increasingly difficult to keep up with the increasing complexity and repetitiveness of cyberattacks. Despite their cost, traditional machine learning models constantly have trouble identifying hard and complex dangers like advanced persistent threats (APTs) and zero-day exploits because of their limitations in pattern recognition, feature generalization, and computing scalability. Real and promising answers to these limitations and constraints can be found in quantum computing, which has a radically new computational intelligence paradigm founded on the ideas and concepts of superposition, entanglement, and quantum parallelism. Specifically, by fast and speeding up learning procedures and identifying different patterns in high-dimensional data that traditional and the usual approaches frequently overlook, the use of Quantum Machine Learning (QML) offers the possibility of improved and greater threat identification features This research explores how QML can be integrated into cybersecurity frameworks to identify and detect and mitigate advanced cyber threats. Through theoretical analysis and proper simulation-based validation, the study investigates the viability, benefits, and limitations or constraints of QML-based cybersecurity systems in both current and near-future computational contexts.