If you understood me very well, I just want to say the simple (and complex) things we usually do to prevent hacking the device.
For example use and configure a firewall. Use original operating systems, keep them up to date, and a very long etc, which we consider obvious, but for people who are not very lovers of techno, these things are not known. And somehow it is necessary to expose these subjects to help these people.
If you want to be more secure use Ubuntu or Mac. There is common misinformation that there are viruses only on Windows but that is of course not true. Its just that most people use Windows and most malwares are made for it. Just by switching to other platform you will get huge security boost as there is significantly lower change of you getting infected.
Thank you very much for commenting, it helps me to define more specifically the theme of this post.
What you are proposing is a very effective solution, but it is not suitable, for those who do not love techno.
I want to deal with the security of the devices of most of the newcomers to this "world of bitcoin". They will use Windows and Android.
This can help to dramatically increase the number of users with cryptocurrency.
I am totally convinced that it is easier to improve security in Windows than to use GNU/Linux, or MAC for its price.
Example: We start with Linux: Make a good password for the Super User, and so ...
Why not say: 1º- Windows user, enable super user, set good password, etc.
2º- Learn to grant permissions to folders and so ...
3º- Properly configure your firewall and so ...