How to store sensitive data?

Question

iOS

I ask for help in finding the best solution to the following problem.
There is a predefined list of products. You can click on products and earn points. Points can also be purchased.
How good is UserDefaults for storing scores? I read that UserDefaults is not the safest way to store sensitive data, is that true?

Answer 1

with a strong desire and jailbreak, UserDefaults can simply be edited with pens.
therefore, if this is an offline application, then you can store it there, but not explicitly.
can also be stored in a keychain.
in general, it is necessary to decide what is the audience and how critical is the change of this information.