I would like to store meta data about users.
At first this I tried by adding fields to the user, but this is not exactly what I want, because the user himself should not be able to manipulate or view the data.
The data I want to store is based on actions a users takes in the application. Its is similar to a status which I want to write and read programmatically. E.g. has the users phone number been validated by the system?
What is the best way to store such data?