PhilC32 wrote:
I particularly want to remove the option to enable Airplane Mode and switch on/off wifi etc because these are a security risk if left enabled.
How this is a Security Risk is not clear to me.
Probably you are under the impression that if someone steals your iPhone, they can swipe down Control Center from the Lock Screen and immediately turn on Airplane Mode (or disable Wi-Fi and cellular). This prevents Find My iPhone from updating its location until the thief re-enables connectivity or the phone is connected to the internet again.

Switched Off? Still traceable
iPhone is findable even when powered off. (iOS 15 and above)
Did you enable Find My network? See the pic below

If yes, read below how it may get located.
The Find My network is an encrypted, anonymous network of hundreds of millions of Apple devices that can help you locate your device.
From the above, I infer that when another device comes in close proximity to your powered-off device the GPS/Bluetooth from both devices will form a network and your device's location info will be displayed to you on your device only. As long as both devices are/have...
- Find My Network is enabled
- iPhone 11, 12, 13, 14, and above
- With iOS 15 and above versions
Set up Find My on your iPhone, iPad, iPod touch, or Mac
