Modern health care depends on connected systems. Medical devices may exchange information with other devices, hospital networks, mobile applications, cloud platforms, and electronic health records. This interoperability can help clinicians access timely information, reduce manual data entry, avoid patient medication use errors, and support more coordinated care across clinical environments.
It also means patient data may move beyond a single device into a broader ecosystem of networks, applications, databases, and clinical systems. For medical device manufacturers, that makes cybersecurity part of the design and development conversation, not a separate concern added after connectivity decisions have been made. The medical device cybersecurity certification program from IEEE provides a standards-based pathway for evaluating connected medical devices against defined cybersecurity requirements.
Defining Medical Device Interoperability
Medical device interoperability generally refers to the ability to safely, securely, and effectively exchange and use information among one or more devices, products, technologies, or systems. In practice, exchanged information may be displayed, stored, interpreted, analyzed, or used to automatically act on or control another product. That distinction is important because interoperability is more than simple connectivity. The exchange must be safe, secure, and effective to support the device’s intended use.
In practice, interoperability can involve a patient monitor sending data to a clinical information system, an imaging system sharing diagnostic images, or a connected device exchanging data with an EHR. Standards such as HL7 Version 2, FHIR, and DICOM help systems exchange information, but they do not eliminate the need to evaluate security risks in the specific device, network, and use environment.
Why Patient Data Risk Increases at Exchange Points
Medical device interoperability creates value because information can move between systems. The same movement also creates security considerations. Data may pass through wireless connections, hospital networks, integration engines, mobile applications, cloud services, and EHR interfaces. Each transfer point can introduce questions about authentication, authorization, encryption, logging, data integrity, and access control.
Cybersecurity guidance for medical devices commonly recognizes this dual reality: medical devices are increasingly connected to the internet, hospital networks, and other medical devices, and those features can improve care while also increasing cybersecurity risks. Like other computer-based systems, connected medical devices can be vulnerable to security breaches that may affect device safety and effectiveness.
For patient data, the concern is not only whether a device can be breached. It is also whether data can be intercepted, altered, exposed, or used outside its intended context. A connected device may generate data that is clinically useful in one workflow but sensitive when stored, aggregated, or transmitted elsewhere. Medical device designers therefore need to consider how data moves across the full system, including components outside the device itself.
How Interoperability Changes the Design Problem
A standalone device can still raise safety and privacy considerations, but an interoperable device changes the scope of the risk analysis. The device is no longer evaluated only as a unit operating in isolation. It must also be considered as part of a larger system that may include third-party software, network infrastructure, external applications, and downstream users of the data.
Consider a remote monitoring workflow. A device may collect physiological data, send it to a mobile application, transmit it to a cloud service, and make the information available through a clinician portal or EHR integration. That workflow may involve multiple organizations, credentials, communication channels, software components, and storage locations.
This is where interoperability and cybersecurity intersect. The design question is not simply, “Can this device connect?” It is, “Can this device connect in a way that preserves the safety, security, and effectiveness of the device and the data it exchanges?” For connected devices, cybersecurity evidence is increasingly part of the regulatory, quality, and product-development conversation, including device design, labeling, documentation, and risk management.
Standards, Certification, and Evidence of Cybersecurity Readiness
Interoperability depends on standards, but cybersecurity also benefits from standardized expectations. Without them, manufacturers, test laboratories, regulators, and health care organizations may evaluate device security using different assumptions. A standards-based conformity assessment process can help reduce ambiguity by defining scope, test requirements, documentation expectations, and evaluation procedures.
IEEE’s Medical Device Cybersecurity Certification Program was developed by the IEEE 2621 Conformity Assessment Committee, which IEEE describes as including manufacturers, clinicians, regulators, test laboratories, cybersecurity solutions providers, and industry associations from around the world. The program offers pre-assessment by an IEEE-recognized laboratory, testing using IEEE 2621 test plans and checklists, standardized reporting, inclusion in the IEEE Medical Device Registry, and assistance with regulatory submissions.
IEEE 2621.2 has also been recognized by the FDA as a consensus standard, giving manufacturers one example of how standards-based cybersecurity expectations can support regulatory alignment. For manufacturers designing interoperable devices, this creates a practical bridge between cybersecurity engineering, standards alignment, and external evaluation. Certification does not eliminate risk, but it can help demonstrate that security requirements have been evaluated in a structured, repeatable way.
Designing Interoperable Devices With Patient Data in Mind
Security for interoperable medical devices begins before the first external connection is enabled. Designers need to identify what data the device collects, why it is collected, where it travels, who or what can access it, how long it is retained, and what happens if the data is unavailable or inaccurate. These questions help connect cybersecurity controls to clinical and operational context.
Threat modeling is one important practice. Resources such as MITRE’s “Playbook for Threat Modeling Medical Devices” offer practical guidance on applying threat modeling concepts and processes to medical devices. For interoperable devices, threat modeling can help teams examine likely attack paths, misuse scenarios, and failure modes across device interfaces and connected systems.
Other design considerations include authentication for users and systems, encryption for data in transit and where appropriate at rest, secure update mechanisms, vulnerability disclosure processes, and logging that supports investigation without exposing unnecessary patient information.
Building Trust in Connected Care
Medical device interoperability will remain central to modern health care. Remote monitoring, telehealth, clinical decision support, imaging workflows, and data-driven care models all depend on the ability to exchange information across systems. The challenge is to support that exchange without treating patient data protection as secondary to connectivity.
For manufacturers, the practical takeaway is that interoperability design and cybersecurity design should develop together. A connected device should be evaluated not only for whether it can exchange data, but for how that data is protected as it moves through real clinical environments. The IEEE Medical Device Cybersecurity Certification program offers manufacturers a structured way to demonstrate alignment with recognized cybersecurity expectations for connected medical devices.
