Many utilities are evaluating options for augmenting the cybersecurity of their OT and IoT networks. This paper illustrates how a network visibility solution improves the security and operational reliability of power generation, transmission and distribution systems. The main issues facing power grid cybersecurity today are: Securing electric power systems through specific use cases and how passive ICS anomaly detection and monitoring work are key to improving the security of the power grid. The paper concludes that the best security best practice is having real-time visibility into cybersecurity attacks, risks and incidents.”]