It is very difficult to hack the Android Safe folder, especially in the latest Android versions, as it is not easy to transfer the Safe folder files to another folder unless you know the pattern/PIN.
Moreover, if you're using a proper Android Safe folder, such as the "Files by Google" app or Samsung's "Secure Folder," your data is stored behind an encrypted wall, which is very difficult to hack. You can do self-penetration testing on your Android phone to learn of any vulnerabilities and plug the security holes.