Extreme wallbanging

Via Tom Duff:

>It's purely accidental that the spookiest computer security story I've
>ever read appeared on Halloween:
>
>http://arstechnica.com/security/2013/10/meet-badbios-the-mysterious-mac-and-pc-malware-that-jumps-airgaps/
>
>BIOS malware uses a data link you didn't think you had: ultrasonic 
>transmissions over PC speakers and microphones. It's immune to airgapping, 
>and it can use your machine regardless of what OS you're running.