content: While some HDD's do in fact have LED's on them, I'm very sure they were referring to the HDD lead from the mobo pin-out to the PC case. While I would not call this "fake news", I would call this "old news". Anything that can be off, then back on in a controllable manner can send data... HDD LED's, fans, KB, optical mice, speakers, screens, a desktop icon, all of it. The reason I would call this old news. you only need on and off and in reality, I would think you don't even need full "off.. just a small change, a flicker could do it... now lets talk about how that flickering red light you saw in traffic today was really programing your dash camera to listen in on you lol. Sounds like a joke... and it is... for now. :)