Keeping Healthcare Connected with End-to-End Network Resilience
By Marcio Saito, CTO, Opengear.
In the past few months, telehealth services have helped many to obtain medical services and avoid exposure to COVID-19 while freeing up resources for those facing graver conditions. This is a great example of an unexpected circumstance quickening the adoption of new technology that will remain after the crisis has passed, but the rapid adoption has also overwhelmed telehealth services, illustrating the importance of network resilience.
Telehealth is just one relatively new application of technology that’s part of a constantly growing repertoire of connected tools. To provide optimal patient care, healthcare ecosystems require constant connectivity to many other bandwidth-intensive applications, such as IoT devices, systems to process patient data via electronic health records (EHR) and picture archiving systems (PACS). With experts predicting the Internet of Medical Things (IoMT) market to be worth $158.1 billion USD by 2022 (Deloitte), we can only expect this trend to grow.
With all these new advancements come new risks. Healthcare systems are comprised of multiple facilities, such as hospitals, labs and urgent care units that all have multi-point connectivity requirements. This requires higher capacity wide area networks (WAN) – often in the form of software-defined wide area networks (SD-WAN). If one of these points loses connectivity for reasons like a cyber-attack, an interoperability issue or a bad SD-WAN router update, the entire network could go offline.
To keep healthcare networks running, organizations need intelligent systems and processes to monitor every piece of equipment, prevent issues, and recover from incidents quickly. This will ensure the secure, always-on availability needed to decrease costs, meet strict regulatory requirements, and improve patient experiences.
Top challenges that can bring your healthcare network down
Three large challenges healthcare organizations face are protecting data, staying online during network consolidations, and unexpected incidents like natural disasters or physical equipment disruptions. These could all bring the primary network offline.
Cyber criminals constantly seek to breach data networks and harvest patient data. In this regard, ransomware attacks, which are primarily transmitted through spam/phishing or other manipulations of unprepared users operating in the primary data plane, cause many healthcare enterprises to shut down computer systems, including their EHR. No topic is off limits to hackers, and even in the past few months, research has revealed phrases like “corona” or “covid” have been featured in spam emails (RiskIQ).
Weather a health system is seeking to modernize its infrastructure or a merger has led to a large transformation, consolidating networks can also be a challenge, requiring the migration of a multitude of apps and hardware components that must stay online at all times and integrate with one another in a cohesive system.
Lastly, unexpected outages from physical events can bring a system offline by disrupting vulnerable points like last mile connections. In this regard, a wide range of network components, such as cable interconnects, switches, power supplies, storage arrays, or chillers could present problems. To support new technologies, network environments are only becoming more complex, which means more software stacks that are frequently updated and susceptible to exploits, bugs and cyberattacks.