[–] NotWearingPants ago
Not really. IIRC, red/black separation is measured in (low number of) feet for parallel runs and inches for 90 degree crosses. So to spy on your theoretical non-internet-connected computer, they would have to have a transceiver pretty close to it.
Check the covers on your power outlets for bugs.
[–] CrazyGrape ago
Well isn't that just wonderful?