Securing Patient Data in Healthcare with Quantum Cryptography in the Quantum Era
P. Manju Bala, S. Usharani, A. Balachandar · Auerbach Publications eBooks · 2025
The rapid digitization of healthcare has greatly improved the efficiency and accessibility of medical services, but it has also brought significant vulnerabilities in data security. As quantum computing progresses, it threatens to render traditional encryption methods obsolete, potentially exposing complex patient data to unprecedented cyber extortions. Quantum cryptography, leveraging the philosophies of quantum mechanism, finds a robust solution to these challenges by creating fundamentally secure communication channels. This chapter delves into the implementation and impact of quantum cryptography on securing patient data in the healthcare sector, focusing on the tangible outcomes of such integration. We start by examining the current landscape of healthcare data security, emphasizing the weaknesses of conventional encryption in the aspect of quantum developments. The core technology discussed is quantum key distribution (QKD), which employs quantum entanglement and superposition to create secure encryption keys. These keys are virtually immune to eavesdropping, as any interception attempt disturbs the quantum state and becomes detectable. Our analysis details the practical steps for implementing QKD in healthcare systems. This includes the deployment of quantum cryptographic hardware, integration with existing IT infrastructure, and the establishment of secure quantum communication channels. We discuss the requirements for ensuring compatibility and the necessary adjustments to current encryption protocols to accommodate QKD. The chapter highlights the expected outcomes of implementing quantum cryptography in healthcare. Enhanced data security is the foremost benefit, with patient data becoming highly resistant to both current and future cyber threats. We quantify the improvements in data integrity, confidentiality, and availability, illustrating how quantum cryptography mitigates threats related with information cracks and unlawful access.