If you suspect that your iPhone has been hacked, the first thing you should do is take a look at your device’s settings and activity. If there are any apps installed or running on your phone that you don't recognize or remember downloading, this could be a sign that it has been hacked. Additionally, if any of your accounts have been accessed without your knowledge, this could also mean that someone else has control of your device.
You might also notice some changes in the performance of the phone itself. For example, if the battery begins to drain quickly or strange pop-ups start appearing on the screen even when no app is open, these are signs that something may be wrong with the device.
Finally, if you notice unusual data usage patterns on your phone plan bill or other suspicious activity related to network connections from unknown sources - this could indicate an unauthorized user trying to access information stored on your iPhone. Ultimately, if you think that someone may have gained access to your iPhone without permission then it's important to act quickly and contact Apple Support for further assistance in securing and protecting your device from potential threats.