The safety and security of our critical infrastructure has never been more important than it is today. Adversaries have advanced capabilities and are constantly targeting these systems; consequently, investments in cyber security are expected to top $17 billion in 2021. Having accurate telemetry and visibility at the lower levels validates the integrity of the physical layer in critical infrastructure. Ciena works in partnership with agencies to define network requirements and tailor a network-as-a-sensor solution to each unique environment.