A software engineer tried steering his robot vacuum with a videogame controller, reports Popular Science — but ended up with "a sneak peak into thousands of people's homes."

While building his own remote-control app, Sammy Azdoufal reportedly used an AI coding assistant to help reverse-engineer how the robot communicated with DJI's remote cloud servers. But he soon discovered that the same credentials that allowed him to see and control his own device also provided access to live camera feeds, microphone audio, maps, and status data from nearly 7,000 other vacuums across 24 countries.

The backend security bug effectively exposed an army of internet-connected robots that, in the wrong han...