Wifi password can be viewed on locked phone
I have seen this happen a couple of times now, since I started using Manjaro ARM Alpha 2. This happens just when you are about to unlock the phone after powering on the phone. Sometimes, the wifi password prompt pops up and blocks you from entering your phone unlock code. The wifi password prompt allows you to view the password that was previously set for your SSID.
Of course, if a stranger gets access to your phone, and doesn't know the password, the stranger might not be able to find out the SSID for that password.