It’s great to have a ringside view into how network security has been dramatically changing in just a few years – from the zone-based controls of the past through the virtual appliance route (combining virtualization and traditional firewall functionality) to today’s software-defined dynamic and flexible security solutions. As we journey from the legacy perimeter security model to today’s cloud-native security model, multiple functions have emerged along the way to gather a deeper understanding of the content and intent of network flows.

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