2.3.1 Health Care Resilience and Cyber Security
Jyri Rajamäki, Laurea University of Applied Sciences, Finland
Digitalisation of health care has radically transformed how patient data is managed, care is delivered, and services are produced. The proliferation of Electronic Health Records (EHR), mobile health (mHealth), and various cyber-physical systems (CPS) has brought significant benefits, but also increased the vulnerability of systems to cyber threats. Cyber security is no longer merely a technical issue – it is a sociotechnical challenge where technology, people, and organisational processes form a complex, interconnected whole.
Traditional cyber security strategies have often focused on protecting individual technical components, such as firewalls, encryption, and system updates. However, these approaches are insufficient to address vulnerabilities in health care systems that arise from human error, outdated infrastructure, inadequate training, unclear policies, and poor communication. Cyberattacks like ransomware do not only target technology – they exploit human behaviour and organisational weaknesses. (Ewoh & Vartiainen 2024)
Cyber Security as a Sociotechnical Phenomenon
Sociotechnical systems (STS) theory provides a framework in which cyber security is viewed holistically, optimising technical, social, and procedural factors together. In the health care context, STS offers a lens to understand cyber security not just as a technical problem, but as a complex interaction between people, technology, and processes. Vulnerabilities often stem from a security design reality gap, where technical solutions fail to consider social and organisational dimensions. Therefore, cyber security solutions must be co-designed to account for all three dimensions. (Ewoh & Vartiainen 2024.)
Science of Cyber Security
When examining cyber security as a science, Edgar & Manz (2017) propose that cyber space consists of the following interconnected components:
Data: Information processed, stored, and transmitted within systems. In health care, this includes patient records, diagnoses, treatment plans, and lab results.
Technology: Infrastructure, systems, and devices that enable data processing. This includes EHR systems, IoMT devices, cloud services, and mobile applications.
People: Users, professionals, patients, and administrators interacting with technology and data. Their actions, skills, culture, and decision-making impact system security.
In health care, Edgar & Manz’s framework helps illustrate how cyber security is a sociotechnical issue. Data is particularly sensitive (PHI – Protected Health Information), and its protection is essential for patient safety and trust. Technology may be outdated or poorly integrated, increasing vulnerabilities (e.g., the Finnish health data breach, psychotherapy center Vastaamo case). People may unknowingly pose risks (phishing, negligence) or intentionally (insider threats), but they are also key to building resilience.
Building Resilience – From Control to Coordination
With digitalisation, health care systems have evolved into increasingly complex cyber-physical networks (CPS), where technology, people, and processes are tightly interconnected. This development challenges traditional cyber security thinking, which has largely relied on internal control and technical safeguards within individual organisations. As systems become more interdependent and networked, internal control alone is no longer sufficient to secure critical operations.
Traditionally, organisations have tried to protect themselves from external threats by building technical “walls” such as firewalls, closed networks, and access restrictions. Security is seen as an internal matter managed within the organisation. This model works in limited and static environments but does not address the dynamic nature and interdependencies of modern CPS networks.
Resilience thinking views cyber security as an ecosystem-level challenge, where threats can spread through networks and affect multiple actors simultaneously. Therefore, a shift from control to coordination is needed. Maintaining cyber security and resilience requires collaboration, information sharing, and a Common Operational Picture (COP) among various stakeholders – hospitals, technology providers, authorities, and patients. COP enables a comprehensive understanding of the situation, supporting decision-making and resource allocation.
Coordination-based resilience also emphasizes Cognitive Situational Awareness (CSA) – the continuous ability to observe, understand, and anticipate the system’s state. COP and CSA do not emerge within a single organisation but require open information exchange and cooperation across the CPS network. Resilience is not built through isolated control but through coordinated action, flexibility, and the ability to recover from disruptions. (Rajamäki 2024.)
Digital Twins as Enablers of Resilience
With advances in AI and machine learning, Digital Twins (DT), Cognitive Digital Twins (CDT), and Virtual Human Twins (VHT) are emerging as enablers of future resilience. Digital Twins are virtual replicas of physical systems, enabling real-time monitoring, analysis, and simulation. In health care, DT technology can be used for hospital operations planning, care pathway optimisation, and immunisation strategy development. More advanced CDTs can autonomously learn, analyse, and support decision-making, making them especially valuable in managing disruptions.