I think I saw neighbor devices in our Powerline setup a decade ago, since I had unrecognized computers indexed in my Network folder (and I use a desktop). Turni

I think I saw neighbor devices in our Powerline setup a decade ago, since I had unrecognized computers indexed in my Network folder (and I use a desktop). Turning on the adapter's really basic 40-bit encryption was enough. That pairing process is the use of a key, yes. I think modern Powerline adapters generate a key anyway.