iPhone potentially been hacked

Groovybrewster wrote:

Thank you. None of those things have happened so that’s a relief. However, the phone can no longer be used as, when we force restart it, it opens on the same screen and touch control does not work. How can we fix it?

It sounds as if there may be something wrong with the touchscreen. I would suggest you contact Apple and arrange to have them run diagnostics. They can often do them remotely.

Genius Bar Reservation and Apple Support Options - Apple

If you feel an unauthorized person/app is remotely using, controlling or monitoring your device, then that is possible only if you have done one or more of the following Don'ts...

1. Don't hand over an iPhone to kids or to a stranger without Enabling Guided Access
2. Don't share Apple IDs
3. Don't Jailbreak
4. Don't share sensitive information pertaining to your device
5. Don't give in to Phishing
6. Don't plug in your device in Airports and Public places through third-party cables and trust the device. Beware of Juice Jacking. (Especially in India)
7. Don't leave your iPhone unlocked and unattended in public places like offices, schools, malls, etc.

If one of the above is true then quickly change the Apple ID Password and Return iPhone settings to their defaults.