CYBER SECURITY
dozens of different countries. Figure 3 highlights the fact that there are over 2,000 devices communicating to China and Russia, some of which are medical.
Cabrini’s approach Using one of the better known IoMT network monitoring tools, Cabrini Health has taken a proactive approach on a journey toward best practice. To date we have achieved: n Visibility of 24,716 networked devices of all types.
n Accurate detection and association with specific asset.
n Identification of 51 Risk Alerts and 13 Threat Alerts, and
n Risk stratification, where 8,333 devices have a high-risk profile, of which 397 are medical in nature.
This information has been synthesised into a programme of work involving IT, Facilities Management, and Biomedical Engineering, which includes patching, firewalling, network segmentation, and equipment replacement. A further unexpected benefit has been the improved asset identification, which in turn has provided the ability to report and understand device utilisation and analytics. This provides better decision-making processes around device procurement, usage optimisation, maintenance, and service planning around
Total data Total data
Communication Type Distribution
China 71.53 GB •
First communication 2/9/23 11.00AM Last communication 5/9/23 9.59AM
Type Internet Data % 71.53 GB 100%
Endpoint Security 0 bytes 0% VPN
Manufacturer Malicious
0 bytes 0% 0 bytes 0% 16.59 KB <0.1%
33.33 GB Outbound 38.2 GB
Russian
Communication Type Distribution
Federation 1.56 GB •
First communication 2/9/23 11.00AM Last communication 5/9/23 9.59AM
Type Internet
Data % 1.55 GB 99%
Endpoint Security 0 bytes 0% VPN
Manufacturer Malicious
0 bytes 0% 0 bytes 0% 12.31 MB 0.8%
Communication Direction
Inbound
1.26 GB Outbound 307.3 MB
71
Communication Direction
Inbound
Communicating Devices
2,336 Total
66 72
Medical OT 1,166
IoT
1,032 IT
Communicating Devices
2,739 Total
65
Medical OT 919
IoT
1,684 IT
Figure 3: A significant number of connected devices – some of them medical – can be seen to be communicating with China and Russia.
networked hospital devices. While not claiming to be an expert, the
journey thus far spanning several years has been a steep learning curve. The following suggestions are made to assist those that may be less advanced in securing non-traditional IT networked devices. Making your healthcare organisation secure and protected against the risk IoT
devices exposes you to requires a mix of fundamental cybersecurity practices and targeted efforts.
1 Ensure you have the appropriate asset visibility and inventory solutions Make sure you have the tools and process to know exactly what is making up your environment and
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