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They installed software on one computer that generates heat by running the CPU. They installed software on the other computer which detects heat through the computer's existing heat sensors, and when detected, moves a little foam dart gun.

Not as scary as I thought.

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Exactly. They just came up with a way of transmitting information from one computer to another with the appropriate software running on each computer.

From the headline, I was imagining some tempest like result where data could be read from the heat signature of any computer. But this is just more click-bait from Wired.

Indeed, requiring the air-gapped machine to first running malware doesn't exactly make this revolutionary, and the bandwidth is so incredibly low. Also, likelihood of ambient interference is quite high that the reliability of this seems suspect best.

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