Hackers once stole a casino's high-roller database through a thermometer in the lobby fish tank
Found on Business Insider on Monday, 16 April 2018
Eagan gave one memorable anecdote about a case Darktrace worked on in which a casino was hacked via a thermometer in an aquarium in the lobby.
"The attackers used that to get a foothold in the network," she said. "They then found the high-roller database and then pulled that back across the network, out the thermostat, and up to the cloud."
You have to give them credits for creativity. Hopefully such attacks will make people aware that not everything needs to be turned into an IoT device. In most cases, having a "dumb" and off-the-grid device is the better choice.