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The CISO's Guide to Modern Microsegmentation for Healthcare Organizations

A concise, vendor-neutral blueprint that helps healthcare CISOs stop ransomware from spreading, slash security costs, and fast-track HIPAA-ready segmentation—without breaking clinical workflows.

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Get Your Comprehensive CISO Playbook for Healthcare Executives

Dive deeper into the critical need for microsegmentation, evaluation criteria, key features, implementation considerations, and how to build a business case. This concise guide distills lessons from leading hospital systems into a 90-day implementation roadmap that you can integrate directly into your Zero-Trust program.

  • Step-by-step 90-day roadmap that walks you from Discovery to Policy to Design to Enforcement, with healthcare-specific guardrails.
  • Executive-ready ROI framework outlining typical cost- and time-savings proven in recent hospital deployments.
  • Deep-dive case studies & CISO interviews that showcase measurable breach-impact and OPEX reductions.
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‟Elisity has changed how we look at microsegmentation solutions overall and we have now experienced how Elisity is the easiest to implement and easiest to manage.”

— Aaron Weismann,
 CISO
Main Line Health
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What is Microsegmentation?

Identity-based microsegmentation enables organizations to rapidly secure their networks by applying granular, context-aware least-privilege access policies that automatically protect users, workloads, and devices wherever they appear on the network — preventing lateral movement attacks while eliminating the need for new hardware, agents, or complex network reconfigurations.

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Why Modern Microsegmentation is Critical in Healthcare Today


  • Ransomware attacks target healthcare's lateral pathways—67% of healthcare organizations were hit in 2024, with attackers moving from compromised workstations to critical medical systems.
  • Healthcare networks manage 10,000-25,000 connected devices per facility, with 50-70% being medical equipment that can't run traditional security agents and often operate for 10-15 years.
  • Healthcare breaches cost $10.93 million on average—the highest of any industry—with 70% involving lateral movement that can disrupt patient care and endanger lives.
  • Traditional segmentation approaches fail in healthcare environments where medical devices use proprietary protocols and clinical workflows cross network boundaries that VLANs and firewalls can't effectively protect.
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The Business Value of Microsegmentation for Healthcare Organizations

  • Reduce Patient Care Disruption: Significantly lower breach impact (typically 90% reduction in blast radius) by preventing ransomware from spreading across clinical systems.
  • Lower Healthcare IT Costs: Achieve a 76% reduction in total cost of ownership compared to legacy segmentation approaches requiring extensive VLAN redesigns.
  • Faster Medical System Recovery: Decrease mean-time-to-contain from 4-6 hours to under 10 minutes, critical for maintaining patient safety during incidents.
  • Strengthen Healthcare Compliance: Simplify audit preparation for HIPAA Security Rule, HHS 405(d), and emerging 2025 network segmentation mandates.
  • Potentially Lower Cyber Insurance Premiums: Healthcare-specific security controls can lead to 15%-30% reductions in increasingly expensive medical malpractice cyber coverage.
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