Comment This exploit is live in the wild (Score 1) 162
This is not theoretical, these exploits are live and active.
A week ago my not-so tech savvy father-in-law was visiting me in the USA and asked me to help "clean up" his iPhone 6. He kept getting these "please enter you apple ID" credential popups for no known reason. Also, he was getting odd printer setup popups and knew of no printer software on his phone. He lives in Switzerland travels the world and had installed several apps to communicate with friends in China and various European countries. A couple of the China pointing apps I researched looked to be created by "China, Inc" which I immediately told him to purge from the phone and from use - forever. There were a couple of communication apps installed on his phone which he was unaware of how they got there and I could not find reference to them anywhere in the Apple Store - so much for the myth that only Apple-certified/Apple-Store approved apps can be installed on your iPhone. After deleting about 10 suspect apps off his phone and power cycling twice the popups ceased.