In several cities across the United States, owners of robotic vacuum cleaners have reported some shocking incidents: their devices have been hacked, causing them to shout out terrible words. This bizarre situation was highlighted in a recent report by ABC News.

One of the most alarming stories comes from a Minnesota lawyer named Daniel Swenson. He was relaxing at home, watching TV, when suddenly, his Ecovacs Deebot X2 vacuum cleaner began to act strangely. At first, it sounded like it wa...