Main Line Health, a multi-hospital healthcare system serving distributed environments with hundreds of clinical practices, thousands of physicians, extensive biomedical device infrastructure (IoMT) requiring HIPAA compliance.

The Elisity deployment completed within hours versus traditional years-long projects, dual national award recognition (CSO50, CIO 100), comprehensive device discovery, and accelerated regulatory compliance.

Healthcare organizations face a unique cybersecurity paradox: mounting pressure from leadership and regulators to implement comprehensive network segmentation while operating in environments where any disruption could impact patient care. Aaron Weismann encountered this challenge when his CEO and board, influenced by industry discussions about network microsegmentation, demanded immediate action. The complexity extended beyond typical IT environments to include hundreds of FDA-regulated biomedical devices - infusion pumps, telemetry monitors, and diagnostic equipment - that "are inherently difficult to secure, specifically biomedical devices which are regulated by the FDA difficult to patch." Traditional segmentation approaches would require extensive change control windows, new hardware installations, and potential service interruptions that could compromise patient safety. With limited time and resources, healthcare security teams needed a solution that could address regulatory requirements without the operational risks associated with conventional network redesign projects.

The breakthrough came with Elisity's identity-based microsegmentation platform, which fundamentally reimagined network security deployment. Rather than requiring extensive infrastructure modifications, the solution leveraged existing network switching equipment to enforce granular security policies based on device identity and context. "Elisity came on site pretty quickly for a proof of concept, was able to deploy Elisity at one of our sites within hours, and then by the next day we were able to create blocking rules and we did in fact do that live." The agentless approach eliminated the complexity of software installations on medical devices while providing comprehensive visibility across the entire healthcare network. Integration with existing asset management platforms like Armis enhanced device discovery and risk assessment capabilities, enabling security teams to understand exactly what devices existed on their networks and how they should communicate. This approach transformed microsegmentation from a years-long infrastructure project into a rapid deployment that could be implemented without disrupting critical healthcare operations.

Aaron says "It scaled beautifully" - a simple statement that captures the transformative impact of successful microsegmentation deployment across a complex healthcare environment. The implementation delivered measurable results that earned national recognition, including both CSO50 and CIO 100 awards for cybersecurity innovation. Beyond industry accolades, the solution provided tangible operational benefits: comprehensive visibility into previously unknown network assets, enhanced regulatory compliance for frameworks like HITRUST and HIPAA, and significantly improved incident response capabilities. The microsegmentation deployment enabled the organization to reduce attack surface gaps while maintaining the seamless connectivity required for patient care systems. Perhaps most importantly, the success created a replicable model that other healthcare organizations could follow, contributing to broader industry resilience. The combination of rapid implementation, proven effectiveness, and scalable architecture demonstrated that modern microsegmentation could address healthcare's unique security challenges without compromising operational requirements or patient safety priorities.