If you choose to put a WiFi password up on a sign as a QR code, do not post it in view of a window. Passers-by should not be able to connect to your network fro

If you choose to put a WiFi password up on a sign as a QR code, do not post it in view of a window. Passers-by should not be able to connect to your network from outside your home or office. This advice also applies to plain text passwords posted on signs.