Would it matter what frequency if the signal is a sequence of digital pulses, i....

		wahsd on Oct 31, 2013 \| parent \| context \| favorite \| on: Mysterious Mac and PC malware that jumps airgaps? Would it matter what frequency if the signal is a sequence of digital pulses, i.e., a digital secret knock encoded in compromised hardware or software, i.e. audio components and or drivers?