https://techcrunch.com/2022/02/08/shift5-series-b-ot-networks-cyberattacks/

You might not think much about the train or the airplane that gets you from one place to another, but behind any transportation link is a vast sprawling network of electronics, devices, and data that keep trains on the tracks and planes in the sky.

Companies like Shift5, which today announced $50 million in Series B funding, are trying to defend those very same systems critical to transportation networks today, an area that Shift5 says is underserved but rapidly growing.