Read about badbios here. This is malware that supposedly jumps an air gap between proximal computers by using the speaker and the microphone operating a high frequencies.
Category: malware
Weaponizing Lap Top Batteries: Stuxnet style approach?
The link from Schneier’s Security Blog is here. I think the implications are important. Essentially we have programmable components of systems that can attack the larger system under conditions where the factory code is hacked.
Discoverers and Discoveries 