Showing a PIN on the screen, to type in, helps a long way. But what if I replace the USB cable for your keyboard? (Or replace the whole keyboard, but that's mor

Showing a PIN on the screen, to type in, helps a long way. But what if I replace the USB cable for your keyboard? (Or replace the whole keyboard, but that's more noticeable.) Most people would just re-authenticate their keyboard immediately, because this stuff sucks enough that we don't even blink when we need to redo a Bluetooth pairing because the planets changed their alignment again.