It's pretty unbeliveable that a zero-day can sit here this long. If one can exist, the likeliehood of more existing at all times is non-trivial.

Whether it's a walled garden of iOS, or relative openneds of Android, I don't think either can police everythign on anyone's behalf.

I'm not sure how organizations can secure any device ios or android if they can't track and control the network layer, period out of it, and there are zero carveouts for the OS itself around network traffic visibility.