Are Enterprises Ready for Quantum-Safe Cybersecurity?

Tran Duc Le; Phuc Hao Do; Truong Duy Dinh; Van Dai Pham

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arXiv · 2509.01731

Are Enterprises Ready for Quantum-Safe Cybersecurity?

Tran Duc Le·Phuc Hao Do·Truong Duy Dinh·Van Dai Pham

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Abstract

Quantum computing threatens to undermine classical cryptography by breaking widely deployed encryption and signature schemes. This paper examines enterprise readiness for quantum-safe cybersecurity through three perspectives: (i) the technologist view, assessing the maturity of post-quantum cryptography (PQC) and quantum key distribution (QKD); (ii) the enterprise (CISO/CIO) view, analyzing organizational awareness, risk management, and operational barriers; and (iii) the threat actor view, evaluating the evolving quantum threat and the urgency of migration. Using recent standards (e.g., NIST's 2024 PQC algorithms), industry surveys, and threat intelligence, we synthesize findings via a SWOT analysis to map strengths, weaknesses, opportunities, and threats. Results indicate uneven and generally insufficient preparedness: while PQC standards and niche QKD deployments signal technical progress, fewer than 5\% of enterprises have formal quantum-transition plans, and many underestimate "harvest now, decrypt later" risks. Financial, telecom, and government sectors have begun migration, but most industries remain exploratory or stalled by costs, complexity, and skills gaps. Expert consensus places cryptanalytically relevant quantum computers in the 2030s, yet delayed preparation could leave today's data vulnerable for decades. We recommend immediate steps: establishing crypto-agility, creating quantum transition roadmaps, prioritizing PQC deployment in high-value systems, and upskilling cybersecurity teams. A coordinated, proactive approach is essential to secure current and future digital assets in the quantum era.

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Tran Duc Le, Phuc Hao Do, Truong Duy Dinh, Van Dai Pham. 2025-09-01. Are Enterprises Ready for Quantum-Safe Cybersecurity?. https://arxiv.org/abs/2509.01731

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