By Lily Hay Newman in Slate

It’s a real, and frightening, possibility.

It’s easy to forget when you’re on dry land that 90 percent of the world’s goods are shipped on boats. While we worry about the cybersecurity of power grids and nuclear missile silos, most of us have never thought about whether the container ships and ports that bring us our clothes, electronics, food—everything—are secured against digital threats.

Spoiler alert: They’re not.

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