In all seriousness, this is nothing new. People have been exfiltrating data from the moving parts of drives for years. Even humble floppy drives can send messages at a great distance. Here some vids of them transmitting sound files to external receivers.
In all seriousness, this is nothing new. People have been exfiltrating data from the moving parts of drives for years. Even humble floppy drives can send messages at a great distance. Here some vids of them transmitting sound files to external receivers.
https://www.youtube.com/watch?v=bGSTYvx5c78
https://www.youtube.com/watch?v=G081hD0nwWE
And this guy is does the same with a single HDD.
https://www.youtube.com/watch?v=_kYlZC7hSV0
If you have control of any moving part you can tap out messages to either a microphone or someone watching your power consumption.