> but would I be right in thinking they would be able to see their leakage on the earth wire too? Yes, I think it should work. As you said, the main difference

> but would I be right in thinking they would be able to see their leakage on the earth wire too? Yes, I think it should work. As you said, the main difference appears to be just the ADC. The PS/2 research only used a 1 Msps ADC on a microcontroller, it's a laughingly simple setup, but already productive (it's literally a 10-dollar instrument today, ideal spy gadget if your victim is still using PS/2 I guess). > But I'm wondering if using a high sample rate ADC would pick up other emissions like Genkin et. al are doing? Someone should try again using the latest USRP SDR receiver [0] and see what they are able to get. RTL-SDR can be used but the sampling depth (8-bit) is not ideal for hunting weak signals near a strong signal. Probing the power earth wiring instead of the chassis or data cable will be noisier, there are a lot of appliances connected. And at higher frequencies, the SNR will be worse due to attenuation, but I think nothing stops one from performing a successful attack. To my knowledge, using a power line filter is mandatory in many high-security facilitates. [0] https://www.ettus.com/ https://www.ettus.com/