These undocumented communication modules offer an invisible back door into devices that regulate a growing share of the world’s electricity. “It effectively means there is a built-in way to physically ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Rogue communication devices ...

Thermoradiative diode technology conceals electronic data signals within natural heat radiation, making transmissions nearly impossible to detect.