This is honestly quite remarkable:
Some national-security and Pentagon officials have compared ship-to-shore cranes made by the China-based manufacturer, ZPMC, to a Trojan horse. While comparably well-made and inexpensive, they contain sophisticated sensors that can register and track the provenance and destination of containers, prompting concerns that China could capture information about materiel being shipped in or out of the country to support U.S. military operations around the world.
It makes perfect sense - a well located cargo crane can track vital military movements, whether it's our aid to the Ukraine or anything else.