OT Security has been in the headlines - the failure of gasoline pipelines, agriculture failures, poisoning of water supplies, and disruption of energy supplies. Nation-state actors are among the most sophisticated we face, in an environment that is still misunderstood, and under-resourced. In this talk Rick Tiene will discuss the history, and impact of OT security breaches, the root cause, and the responsibilities of leadership in preventing them. Mission Secure and its partners research this field, to identify threats to critical infrastructure, smart cities, manufacturing and other OT rich environments. Our highly scalable platform reduces the risk of human errors, insider threats, and targeted attacks. This talk will discuss the human resource issues pertaining OT security, the changing attacker profile and the greater risks faced by 'brownfield' sites.