QT: how to safely store data such that it is not possible to rewrite the data from outside the application? : I am still learning QT, and this thing come to my mind: If I design a software and I want some data to be saved and protected. But all the ways I know about saving data from QT Creator applications are writing into files which can be easily altered and deleted. Is there any way that I can safely store some application data and no one else can access it without breaking the applcation?

This might be a stupid question, but I am actually looking forward to some idea.
Thanks a lot.