content: This is just an app signed with a corporative certificate. The application had to be installed in the device and, even then, iOS would ask you for permission the first time you'd tried to open it. And, then, iOS would ask you for permission once more when the app tried to access to your information. This means that, in order to be effective, the hacker had to have physical access to your device and being able to unlock it in order to install it and give access to your data. And if you have this kind of access there is nothing you're not being able to do with it.