Comment Re:usb keyboard? (Score 1) 208
Very, very often, the individual cables (0v, 5v, D+, D-) within the cable aren't shielded from each other, there's just a shield round the whole lot.
This attack talks about data getting from the data lines to the ground line, which would still happen with most USB cables, certainly the vast majority of keyboards I'd reckon.
More likley to knock the noise out is the fact that the data is transmitted as D+ and D- in USB. If the D+ leaks onto the 0v wire, the D- can also leak, which just cancels the D+ out, so nothing is seen.