Abstract
The Internet of Medical Things (IoMT) couples IoT technologies with healthcare services in order to support real-time, remote patient monitoring and treatment. However, the interconnectivity of critical medical devices with other systems in various network layers creates new opportunities for remote adversaries. Since most of the communication protocols have not been specifically designed for the needs of connected medical devices, there is a need to classify the available IoT communication technologies in terms of security. In this paper we classify IoT communication protocols, with respect to their application in IoMT. Then we describe the main characteristics of IoT communication protocols used at the perception, network and application layer of medical devices. We examine the inherent security characteristics and limitations of IoMT-specific communication protocols. Based on realistic attacks we identify available mitigation controls that may be applied to secure IoMT communications, as well as existing research and implementation gaps.
Highlights
The term Internet of Things (IoT) refers to a wide range of interconnected objects and devices that harvest information from the environment through sensors, analyze it and act back on the physical world through actuators [1]
We briefly describe the prominent security controls that were taken into consideration during the design and development phase of the most common protocols used in Internet of Medical Things (IoMT)
The rapid adoption of IoT in the medical sector suggests that the integration of WSN and sensor networks in medical services will continue to increase both in complexity and size
Summary
The term Internet of Things (IoT) refers to a wide range of interconnected objects and devices that harvest information from the environment through sensors, analyze it and act back on the physical world through actuators [1]. Smart hospitals integrate IoMT to “provide optimised and the automated processes built on an Information and Communication Technologies (ICT) environment of interconnected assets, based on IoT, to improve existing patient care procedures and introduce new capabilities” [4]. Sensors 2020, 20, 4828 the available IoT communication technologies in terms of security, in the context of medical devices. To perform this evaluation we use a classification based on the three layers of the IoT communication protocols [5], the perception, network and application layers as described below. It corresponds to the session and application layer in the OSI model This layer provides application and data control services. The multitude of medical assets used throughout the healthcare ecosystem calls for the integration of different technologies to be used under the same IoMT ecosystem
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