This is for public encrypted guest WiFi networks, to make guests lives more comfortable... you can scan this with your phone to automatically connect without ne

This is for public encrypted guest WiFi networks, to make guests lives more comfortable... you can scan this with your phone to automatically connect without needing to type the password which can come handy if the password is at least somewhat secure. Usually it's printed in the same places where you would actually print your plaintext Wi-Fi password, if you're already doing that, for example in restaurants (e.g. QR code inside a menu card that's only given to actual customers), offices (QR code inside meeting room for actual guests), airbnbs (QR code on a fridge inside your house), hotels (QR code inside the room with a router))