In the first episode of Secure Tracks, Roark Pollock speaks with Dr. Mark Grant, a renowned rail cybersecurity leader who worked at CSX for 17 years, serving as the Chief Information Security Officer for 8 years. Mark discusses the three waves of digitalization in the rail industry and the impact of the most recent wave on operational rail technologies. The conversation touches upon government views and actions, including the recent TSA Security Directives and the upcoming rulemaking process.