This information highway going into and out of an app will contain massive
amounts of data-and attacker who can tap into this data will immediately
gain immense power over the device. Furthermore ,controlling the information
flow to Binder is a uniquely portable way to steal and modify user data in
Android. An attacker does not need to know anything about the implementation
of a specific app : regardless of the application's internal complexity, it will
eventually have to call a limited set of system services.