Jonathan Zdziarski wrote interesting article about undocumented services running on iOS7 which allow security attacks.
This is purest example that when you use device with closed source software you are in vendor’s hands.
They can do with your data whatever they want behind your back.
Ciprian
Apr 13, 2017 @ 17:15:24
He got a job from Apple in March 14, 2017 and said that he will protect the security and privacy of others