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<p>Cybersecurity has become increasingly vital in our highly interconnected digital world. Many key challenges in this field can be modeled as optimization problems, involving elements such as system vulnerabilities, attack budgets, defense costs, and potential attacker gains. Recent advancements in quantum annealing have shown promise in tackling complex optimization tasks across various domains. This paper explores how quantum annealers can be leveraged to address cybersecurity problems from both offensive and defensive perspectives. For each case, a Hamiltonian is constructed in the Quadratic Unconstrained Binary Optimization (QUBO) form—suitable for input into a quantum annealer—and correctness proofs are provided. Along the way, some new QUBO construction techniques are introduced, which may be applicable to other problem areas. The theoretical findings are supported by experimental results obtained using a D-Wave simulator. The article concludes with a discussion on the practical relevance and implementation of the proposed Hamiltonians.</p>

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Hybrid classical quantum computation for cybersecurity strategies in a layered cybersecurity model

  • 期刊论文

  • 发表日期：

    2025年7月22日

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  • Jedsadakorn Kritsadakul,
  • Sanpawat Kantabutra

摘要

Cybersecurity has become increasingly vital in our highly interconnected digital world. Many key challenges in this field can be modeled as optimization problems, involving elements such as system vulnerabilities, attack budgets, defense costs, and potential attacker gains. Recent advancements in quantum annealing have shown promise in tackling complex optimization tasks across various domains. This paper explores how quantum annealers can be leveraged to address cybersecurity problems from both offensive and defensive perspectives. For each case, a Hamiltonian is constructed in the Quadratic Unconstrained Binary Optimization (QUBO) form—suitable for input into a quantum annealer—and correctness proofs are provided. Along the way, some new QUBO construction techniques are introduced, which may be applicable to other problem areas. The theoretical findings are supported by experimental results obtained using a D-Wave simulator. The article concludes with a discussion on the practical relevance and implementation of the proposed Hamiltonians.