4.1 Introduction
4.1.1 Context
Ensuring cybersecurity in the health care sector is a growing concern. The increasing digitalization of health care service providers has enabled cyberattack techniques toward them to become more liquid, flexible, and able to exploit all the possible paths of entry rapidly.Footnote 1 For example, one such attack may target critical assets of hospitals which include both the IT infrastructure and connected-to-network medical devices. A successful cyberattack toward IT infrastructure may cause significant disruptive effects for the provision of essential health care services.Footnote 2 When a cyberattack concerns a medical device, it may put at severe risk the health and safety of patients.Footnote 3 This disquiet appears to be even greater at the time of a worldwide COVID-19 outbreak. Reports on cyberattacks toward medical devices issued during this pandemic revealed how hackers use various techniques to get access to individuals’ sensitive health-related information for different gains.Footnote 4
Regulators around the globe have started increasingly to pursue medical device cybersecurity as a policy objective over the past years. For example, the US Food and Drug Administration (FDA) issued its first general principles for Networked Medical Devices Containing Off-the-Shelf Software in 2005, followed by the 2014 and 2016 Guidance for Premarket Submission and Postmarket Management of Cybersecurity in Medical Devices. In March 2020, the International Medical Devices Regulators Forum (IMRDF) issued its medical devices principles and practices on medical devices’ cybersecurity, while in the European Union (EU), the first piece of guidance was issued only in July 2020 (with the first version from December 2019) by the European Commission’s (EC) Medical Devices Coordination Group (MDCG).
4.1.2 Ambition
Discussions evolving around the regulation of medical devices and their cybersecurity are a recent trend in academic literature.Footnote 5 Many contributions analyze the US system, while fewer concern the EU one.Footnote 6 This chapter aims to contribute to the literature dealing with the law of medical devices and cybersecurity by assessing the level of maturity of the EU medical devices legal framework and EU cybersecurity policy objectives.Footnote 7 The analysis starts with an outline of cybersecurity-related aspects of EU Medical Devices Regulation (MDR).Footnote 8 This is followed by a critical analysis of regulatory challenges stemming from the MDR, through the lens of the MDCG Guidance. The following section concerns the regulatory challenges stemming from other legal frameworks, including the Cybersecurity Act,Footnote 9 the Network and Information Systems (NIS) Directive,Footnote 10 the General Data Protection Regulation (GDPR),Footnote 11 and the Radio Equipment Directive (RED)Footnote 12 since they all become applicable when it comes to ensuring the cybersecurity of medical devices. Here the analysis demonstrates that regulatory challenges persist due to regulatory specialization,Footnote 13 which has led to regulatory overlapping, fragmentation risks, regulatory uncertainty, and duplication.Footnote 14 In the final section, the chapter provides conclusive remarks as well as recommendations for regulators dealing with the cybersecurity of medical devices in the European Union.
4.2 How Does the EU Medical Devices Regulation Deal with the Cybersecurity of Medical Devices?
The provisions of the EU Medical Devices Regulation (MDR)Footnote 15 primarily address manufacturers of medical devices who are defined as “the natural or legal person who manufactures or fully refurbishes a device or has a device designed, manufactured, or fully refurbished and markets that device under its name or trademark.”Footnote 16 No explicit reference to cybersecurity is provided in the main part of the MDR. However, it provides some essential cybersecurity-related requirements that manufacturers have to implement in a medical device.Footnote 17
When putting a medical device on the market or into service, Article 5(1) of the MDR obliges its manufacturer to ensure that the device is compliant with the MDR obligations when used in accordance with its intended purpose. According to Article 5(2) of the MDR, “a medical device shall meet the general safety and performance requirements” (also including the cybersecurity-related requirements)Footnote 18 “set out in Annex I [of the MDR] … taking into account the intended purpose.”Footnote 19 The intended purpose is defined in Article 2(12) as “the use for which a device is intended according to the data supplied by the manufacturer on the label, in the instructions for use or in promotional or sales materials or statements and as specified by the manufacturer in the clinical evaluation.” As part of the general requirements set in Annex I of the MDR, “devices shall achieve the performance intended by the manufacturer”Footnote 20 and be designed in a way suitable for the intended use. They shall be safe and effective, and associated risks shall be acceptable when weighed against the benefits of the patients and level of protection of health and safety while taking into account the state of the art.Footnote 21
Moreover, “[m]anufacturers shall establish, implement, document, and maintain a risk management system.”Footnote 22 Part of this system also includes risk-control measures to be adopted by manufacturers for the design and manufacture of a device, and they shall conform to safety principles and state of the art.Footnote 23 A medical device designed to be used with other devices/equipment as a whole (including the connection system between them) has to be safe and should not impair the specified performance of the device.Footnote 24
Furthermore, a medical device shall be designed and manufactured in a way to remove, as far as possible, risks associated with possible negative interaction between software and the IT environment within which they operate.Footnote 25 If a medical device is intended to be used with another device, it shall be designed so the interoperability and compatibility are reliable and safe.Footnote 26 A medical device incorporating electronic programmable systems, including software or standalone software as a medical device, “shall be designed to ensure repeatability, reliability, and performance according to the intended use,”Footnote 27 and “appropriate means have to be adopted to reduce risks or impairment of the performance.”Footnote 28 A medical device should be developed and manufactured according to the state of the art and by respecting the principles of the development lifecycle, risk management (including information security), verification, and validation.Footnote 29 Lastly, manufacturers shall “set out minimum requirements concerning hardware, IT network characteristics, and IT security measures, including protection against unauthorized access.”Footnote 30 Concerning information to be supplied together with the device, manufacturers must inform about residual risks,Footnote 31 provide warnings requiring immediate attention on the labelFootnote 32 and, for electronic programmable system devices, give information about minimum requirements concerning hardware, IT networks’ characteristics, and IT security measures (including protection against unauthorized access), necessary to run the software as intended.Footnote 33
4.3 Regulatory Challenges Stemming from the MDR Analyzed Through the Lens of the MDCG Guidance on Cybersecurity for Medical Devices
The Medical Device Coordination Group (MDCG) of the European Commission endorsed Guidance on Cybersecurity for Medical Devices (Guidance) in December 2019Footnote 34 where it dealt with the cybersecurity-related provisions embedded in the MDR. Already, it is necessary here to mention that this MDCG Guidance is not a legally binding document. Hence, in case of disagreement, manufacturers could decide not to follow it – which might have an impact on the overall harmonizing purpose of the MDR and lead to a divergence of application of the EU principles and laws on a Member State level. Nevertheless, being the first guiding document on this topic issued by the EC for the medical devices sector, it is an essential step in further elaborating on specific MDR cybersecurity-related provisions.
As already mentioned in the previous section, the MDR does not expressly refer to cybersecurity.Footnote 35 Nor does the MDCG Guidance define the terms “cybersecurity,” “security-by-design,” and “security-by-default.” Instead, the latter document only provides an outline of its provisions relating to cybersecurity of medical devices and points out conceptual links between safety and security.Footnote 36 Leaving these terms theoretical and undefined does not facilitate their implementation in practical terms by the stakeholders concerned.
Moreover, no reference in the MDCG Guidance is given to definitions provided by the Cybersecurity Act (CSA).Footnote 37 Establishing a connection in the soft-law instrument (i.e., the Guidance) with the latter would imply a reference to a hard law definition. This link could serve to reduce the ambiguity of the term, and it might help in achieving more coherence within the EU cybersecurity regulatory framework as a whole.Footnote 38 The proposed approach would be ultimately beneficial for manufacturers as it would bring more clarity in the interpretation of MDR requirements.
The MDCG Guidance stresses the importance to “recognize the roles and expectations of all stakeholders”Footnote 39 on joint responsibility and states its “substantial alignment” with International Medical Device Regulators Forum (IMRDF) Principles and Practices for Medical Devices Cybersecurity.Footnote 40 To this end, achieving a satisfactory level of the cybersecurity of a medical device concerns manufacturers, suppliers, health care providers, patients, integrators, operators, and regulators. Manufacturers are bound by the majority of the provisions in the MDR. Integrators of a medical device are, among others, responsible for assessing a reasonable level of security while operators need to ensure the required level of security for the operational environment, and that personnel are properly trained on cybersecurity issues. At the same time, health care professionals are responsible for a device being used according to the description of the intended use, while patients and consumers need to “employ cyber-smart behaviour.”Footnote 41 All of these stakeholders are an equally important part of the cybersecurity chain,Footnote 42 and each is responsible for ensuring a secured environment in which a device could smoothly operate for the ultimate benefit of patients’ safety.
Nevertheless, the MDCG Guidance failed to elaborate on how exactly the joint responsibility of different stakeholders is influenced or conflicted by other applicable laws, in particular, when it comes to the Network and Information Systems (NIS) Directive,Footnote 43 the General Data Protection Regulation (GDPR),Footnote 44 and the Cybersecurity Act (CSA).Footnote 45 Since the expert group did not tackle them in detail in theory, it is also hard to imagine how the interested stakeholders operating within the medical devices domain are supposed to implement in practice different pieces of legislation divergent in scope and applicability.Footnote 46 Hence, the MDCG should consider adopting a more holistic approach in the future when determining the meaning of “joint responsibility” as this would help in analyzing relevant aspects of other horizontal legislation and, eventually, in achieving a more coherent cybersecurity regulatory framework.
Finally, what seems to be heavily overlooked for unclear reasons is the applicability of the Radio Equipment Directive (RED),Footnote 47 which has not even been mentioned in the MDCG Guidance. The RED cybersecurity-related provisions and their interaction with MDR as well as the other laws applicable to the cybersecurity of medical devices are explained below.
4.4 Regulatory Challenges Stemming from Other Legal Frameworks Applicable to Medical Devices
Regulation of cybersecurity is a complex task. Cybersecurity is an area in which different policy fields need to be combined (horizontal consistency), and where measures need to be taken at both levels – the European Union and Member States (vertical consistency).Footnote 48 Regulation of medical devices is complex, too, as it is a multi-levelFootnote 49 legal framework characterized by specialization and fragmentation.Footnote 50 Regulating the cybersecurity of medical devices implies bearing the complexities of both legal frameworks. In this regard, we identified four regulatory challenges: regulatory overlapping; fragmentation risks; regulatory uncertainty; and duplication. We clarify the first two challenges as relating to horizontal consistency requirements, the third to vertical requirements, and the fourth to a combination thereof. Finally, we envisage specialization and fragmentation as a common denominator of all four challenges.
4.4.1 Regulatory Overlapping: CSA Certification Schemes and the MDR
On the one hand, the MDR provides the possibility to obtain a certificate for demonstrating compliance with its security requirements. On the other hand, the CSA set up a new and broader framework for cybersecurity certifications for ICT products, processes, and services. The CSA appears to be inevitably relevant for medical devices’ cybersecurity since medical devices may fall under the definition of an ICT product.Footnote 51
Some stakeholders have questioned the applicability of CSA rules and the operability of European Cybersecurity Certification Schemes (ECCS) for health care.Footnote 52 They expressed concerns as regards to overlaps between MDR and cybersecurity certification schemes and requirements.Footnote 53 For instance, COCIR (the European trade association representing the medical imaging, radiotherapy, health ICT and electromedical industries) claimed that “[a] specific certification scheme for medical devices is … not necessary as the MDR introduces security requirements that will become part of the certification for receiving the CE mark.”Footnote 54 Such a scenario may bring duplication in requirements for manufacturers on the one hand, as well as for authorities having the oversight on manufacturers’ compliance. Ultimately, this could also imply conflicts in authorities’ respective competence.
The MDCG Guidance did not provide clarifications on the applicability of the CSA in this context. It provides only one reference to the CSA in the whole body of the document.Footnote 55 The reference is purely descriptiveFootnote 56 and does not resolve the applicability question. Against this background, the CSA clarifies that the health care sector should be one of its priorities.Footnote 57 The MDCG or the EU regulator should provide further guidance tackling aspects relevant to the cybersecurity certification schemes for medical devices. This could be done, for instance, by explaining how MDR cybersecurity-related requirements apply when the ICT product is considered to be a medical device and what type of certification schemes would be relevant. Furthermore, regulators could specify that, for ICT products not qualifying as a medical device, the CSA should remain the general rule.
4.4.2 Fragmentation Risks: Voluntariety of Certification Mechanisms
As seen in Section 4.4.1, the CSA has established certification mechanisms for ensuring the cybersecurity of ICT products. Manufacturers of medical devices may join them voluntarily.Footnote 58 However, EU Member States may establish a mandatory certification mechanism in their territories since the CSA provides that “[t]he cybersecurity certification shall be voluntary unless otherwise specified by Union law or Member State law” (emphasis added).Footnote 59 In practice, this provision implies that some Member States may impose the obligation of obtaining a cybersecurity certification, while others would leave it as a voluntary fulfilment. Manufacturers would be obliged to obtain a cybersecurity certificate for a device to market it within one Member State while at the same time, the same would not be required in another Member State.
This hypothesis could provoke diverging mechanisms in the internal market and could lead to regulatory shopping.Footnote 60 Manufacturers could also face additional compliance costs for aligning with different national requirements. Moreover, this could lead to fragmentation risks for the EU market. National requirements could diverge, and supervisory authorities could interpret different rules following different interpretative approaches.Footnote 61 Therefore, the overarching regulatory strategies to bring more consistency amongst the Member States should aim at ensuring coordination and cooperation amongst competent authorities.
4.4.3 Regulatory Uncertainty: Security Requirements between the MDR and the Radio Equipment Directive (RED)
The RED establishes a regulatory framework for making available on the EU market and putting into service of radio equipment. Certain types of medical devices (such as pacemakers or implantable cardioverter defibrillators) are likely to fall under the scope of the Directive and thus be subject to its security requirements.Footnote 62 The RED’s simultaneous application with the MDR may imply issues in practice. Notably, such parallel application may lead to the question of whether RED security rules are complementary or redundant to the MDR.Footnote 63
The European Commission developed guidance (the RED Guide)Footnote 64 to assist in the interpretation of the RED. However, the RED Guide only states that an overlap issue covering the same hazard might be resolved by giving preference to the more specific EU legislation.
Similarly, more general EC guidelines on EU product rules (the Blue Guide)Footnote 65 explains first, that two or more EU legislative acts can cover the same product, hazard, or impact. Second, it provides that the issue of overlap might be resolved by giving preference to the more specific law. This, explains the EC, “usually requires a risk analysis of the product, or sometimes an analysis of the intended purpose of the product, which then determines the applicable legislation.”Footnote 66 In other words, except for the cases where the applicability of one law has obvious priority over the other, a medical device’s manufacturer is left with a choice of the applicable legislation. On the one hand, this approach could imply a significant burden for virtuous manufacturers in justifying the applicable law. On the other hand, such kind of regulatory uncertainty could lead less-virtuous manufacturers to exploit somehow “functional overlaps” of the two regulations and bring them to “choose only” compliance with RED. This could be particularly significant for low-risk medical devices, for which a decision on the intended medical purpose – and thus, law’s scrutiny – is left to the responsibility of the manufacturer.Footnote 67
The MDCG Guidance does not provide any help in this regard. For no apparent reasons, it overlooked the applicability of the RED while it should be present in the Guidance. For example, the MDCG could provide an example of cases to which the RED applies, together with its opinion of the relevance of RED cybersecurity-related requirements. This solution would help to resolve regulatory uncertainty and help manufacturers in their decision concerning the applicability of requirements stemming from different pieces of legislation.
4.4.4 Duplication: The Notification of Medical Devices Security Incidents
Incident notification is an evident example of how specialization and decentralization have provoked the proliferation of administrative authorities with supervisory tasks. This is particularly true for the framework of medical devices where three different legal frameworks for incident notification apply: the MDR (on serious incident notification),Footnote 68 the GDPR (on data breach notification),Footnote 69 and the NISD (on security incident notification obligations).Footnote 70 Every piece of legislation requires notification to different authorities: the MDR to competent authorities, the GDPR to supervisory authorities, the NISD to national authorities or Computer Security Incident Response Teams (CSIRTs) (depending on the incident reporting model chosen by the Member State).Footnote 71 Criteria for which an incident must be notified to an authority differ in scope and objectives pursued by different pieces of legislation. None the less, it could happen that in practice, a security incident concerning a medical device should be notified at the same time to MDR, NISD and GDPR competent and/or supervisory authorities.Footnote 72
In this case, notification of a security incident implies administrative oversight by three (or more) different authorities. Such a circumstance could cause duplication of tasks and costly compliance procedures for manufacturers and health care stakeholders in general.Footnote 73 Some stakeholders already pointed out that “increasing numbers of organizations … need to be informed about a single security incident,” and “[i]n some examples, multiple competent authorities in a single country.”Footnote 74
A possible approach that could simplify the whole process would be to “adopt a more centralized approach to avoid duplication and confusion.”Footnote 75 A step further could be done by enhancing cooperation mechanisms between these authorities, harmonizing security incidents notification procedures at a vertical level across the Member States as well as at a horizontal level by considering different policy fields and their regulatory objectives.
4.5 Conclusions and Recommendations
The adequate level of cybersecurity and resilience of medical devices is one of the crucial elements for maintaining the daily provision of health care services. Above all, it is pivotal to mitigate risks relating to patients’ health and safety. On the one hand, the ongoing debate on the topic in the United States and, more recently in the European Union, shows an increasing level of awareness amongst regulators, manufacturers, health care professionals, and other involved stakeholders. On the other hand, the research presented in this chapter shows that the existing EU legal framework dealing with medical devices’ cybersecurity brings significant regulatory challenges. In order to provide a step forward in mitigating these challenges, the EU regulator might consider the following recommendations:
1. Establish a more robust connection of the MDCG Guidance with EU cybersecurity (hard) laws, especially the CSA and its definitions of cybersecurity, security-by-design, and security-by-default. Ensuring consistent use of terminology across different pieces of legislation (binding and non-binding) would also help manufacturers in meeting the requirements as it would bring more clarity in the interpretation of the MDR cybersecurity-related provisions.
2. Clarify the meaning and implications of “joint responsibility” in the intertwining with other applicable laws (in particular when it comes to the NISD, GDPR, and CSA). Further explanations on how exactly the responsibility stemming from one piece of legislation applicable to a specific stakeholder is influenced or conflicted with the responsibility of another stakeholder (stemming from the same or different piece of legislation) would represent a meaningful tool to guide manufacturers in complying with all the relevant laws.
3. Clarify the scope of application of the CSA for certification mechanisms and MDR security requirements. In particular, the EU regulator should explain how the MDR cybersecurity-related requirements apply to an ICT product which also falls under a definition of a medical device, and what type of certification schemes would be relevant.
4. Provide guidance on the application of the RED, its interaction with the MDR and other laws applicable to the cybersecurity of medical devices.
5. Ensure cooperation between competent national authorities (i.e., for incident notifications) in order to achieve timely respect of the requirements, and to avoid compliance duplication.