Don't be surprised if heightened tensions with Iran, China and Russia push email security to the top of every CISO's agenda this year—including those in the transportation industry.

It's well known that the threat posed by phishing in the transportation sector has surged over the last year. But now, an email attack leading to the theft of radioactive materials from a cargo ship, a serious train derailment, or the weaponization of hazardous materials trucked through populated areas isn't just the stuff of Hollywood blockbusters anymore.