My colleague, Silviu Stahie, wrote an interesting article earlier today, regarding the “ability” of the Ubuntu Linux operating system to store Wi-Fi passwords in plain text, “thanks” to the default design of the NetworkManager application, initially developed by Red Hat.
Well, guess what? The truth is that all Linux operating systems that use the NetworkManager software expose Wi-Fi passwords by default, not just Ubuntu. Moreover, you should also known that even if you don’t use NetworkManager, and you use another tool to configure and manage network connections via profiles, your Wi-Fi password(s) will still be stored in clear text by default.