Proof-of-concept
I found a research project by called System Bus Radio from fulldecent where William would play "Mary had a little lamb" over SBR.
His project is written in C and if you have any interest in SDR, HAM stuff or terminal whispering please go check out his research.
I was experimenting with a keylogging on Mac OSX El Capitan and I came up with this small POC.
It took me a couple hours to put this project together, so what you imagine is acutally what is possible.
Some links:
- (System Bus)[https://en.wikipedia.org/wiki/System_bus]
- (SBR - System Bus Radio Hacker News)[https://news.ycombinator.com/item?id=11203951]
- (SBR - Video)[https://www.youtube.com/watch?v=caGPmyMLYUI]
- (SDR - Software Defined Radio)[https://en.wikipedia.org/wiki/Software-defined_radio]
- (HAM RAdio)[https://en.wikipedia.org/wiki/Amateur_radio]