Android phones, or at least most of the Android phones that have been sold to consumers, do not encrypt data stored on the device by default, and the built-in text messaging app in Android does not use encryption.
Os teléfonos Android, ou polo menos a maioria dos vendioos aos consumidores, non encriptan por defecto a información gardada no dispositivo, e a aplicación de mensaxes que Android  incorpora non usa encriptación.