Ship loading and container load plans are vulnerable to hack because are created without using a secure messaging system. Large vessels rely a system called BAPLIE to displace thousands of containers, it is used to inform port authorities where to place every single container. The attackers could be interested in manipulating container weight and ship balance to make the ship more and more unstable as heavy goods are inadvertently loaded in the wrong position of the vessels. In many cases the personnel involved in the operations use USB devices for exchanging data between ship and terminal.”]
Source: https://securityaffairs.co/wordpress/66107/hacking/load-plans-hacking.html