With more than 60,000 devices on Main Line Health’s network, the Philadelphia-based health system needed better visibility into its complex environment to protect against potential cyberthreats, including ransomware attacks. CISO Aaron Weismann says that’s why his team methodically rolled out a microsegmentation strategy. One of the key challenges in adoption was getting buy-in from clinical operations. “Anytime you walk into a clinical space and say, ‘I'm going to prevent some of your devices from talking to each other,’ that gets very scary when it comes to potential disruptions to patient…

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