I here your concern and confusion.
These are the instructions I see
"Ensure that the iOS or Android device on which you have installed the Naim App is connected to the same wireless network you wish your Mu-so to use. Open the Naim App and select Setup new Mu-so. Follow the on-screen instructions to connect Mu-so to the wireless network.
Unless the app is automatically drawing configuration from your phone and pushing, which I can't see happening because the wifi credentials are fully encrypted and unavailable to an app or even you. Any media device I have ever connected has required a password, even wifi light switches, doorbells, etc.
I was reading further online and found that the connection of the app to the temporary wifi for connecting the app on your device to the Naim does not require a oassword to set up the system. In the setup if you want to connect to your wifi network it will show available wifi source. I did read that it may ask for password, but I can't see how it could connect without one because I cannot understand how it could ever get it. The word may, and I am not sure this is a manufacturer doc or a forum. To here the word may makes me very uncomfortable.
If it didn't ask for it personally I would disconnect and search the internet. Unplug it consider a factory reset and repeat the process following factory instructions. Built in steps are not always clear. I have made mistakes in connecting devices to my wifi via a phone app and had to start over but never did I ever get a connection to my wifi. I could access the device without a password and somebody them still showcthose passwords butvtryingvto connect again I couldn't. A factory reset was the only way vusuallybaftercconbectedvto the device and using my phone it no longer requires a password to access the app, but my wifi remains secure. Google home mini ecobee, to link all connect as long as my phone and device are on the same network. Some like my bell smartphone do require the alarm.com username and password, but that is to be expected. It is designed under the foundation of a security system actually operating indepently of Bell. Although the bell smartphone app is branded bell it connects to alarm.com.
I don't know your use design or usage design so can't say anymore.
I say disconnect. Unplug it. It may be creating a compromise to your network safety as the access to the device by another phone will be able to access your music system as my reading suggests that the temp wifi from the device may come back and the writer was concerned that others could access it as it requires no password.
I do wonder if in your setup the connection process to your wifi was completed.
These are guesses and you are right to ask about it and have concerns.
There is a lot of discussion on the internet on your product and I only did a very cursory search.
Read through the device information, consider changing your password if you believe it to be connected.
On linevthere are steps to choose the network and add the new password.
There are documents and videos.
The issue is with you Naim but your concern is value.
Keep the forum up to date. Devices that connected to our networks are designed to have you choose and authenticate with your wifi.
I have never seen an exception to this but one doc I read said may. Scary if it is true.
If anyone ever runs into a non bell device not requiring password authentication personally I would unplug it and do research ab/or contact their support directly
You are commended for asking and for being concerned.
Bruce
