USBee stings air-gapped PCs: Wirelessly leak secrets with a file write on a USB stick, measuring the voltage changes

Dubbed USBee, the technique turns a computer’s USB ports into mini RF transmitters by modulating the data fed at high speed to plugged-in devices. By banging out a string of ‘0’ bits to a USB port, the voltage changes in the interface generate detectable emissions between 240MHz and 480MHz, according to Guri. Next, by writing Read more about USBee stings air-gapped PCs: Wirelessly leak secrets with a file write on a USB stick, measuring the voltage changes[…]