Does iOS get hacked?

iOS is hacked in the form of jailbreaking.

This is a process where the system is purposfully modified to remove the in-built security mechanisms which limit what apps can do.

It’s akin to taking your house and removing the locks off the door and windows.

HOWEVER

This cannot be done remotely. Someone cannot “hack into your phone” as depicted on television shows and gain access. The phone needs to be put into a special mode and hooked up to a computer.

And current jailbreaks fail when the phone is switched off and on.

Malware for iOS is mostly non-existent. All apps have to be signed and come through the app store. They are vetted by Apple. Any malicious apps which do get through that are limited in what they can do. Apps can’t modify the system, or access the content of other apps. But they could get hold of your address book, or location if you grant permission.