With iOS 18, Apple's Activation lock will guard more than the phone OS

The feature was announced back in April 

only available as an RC (Release Candidate) build for developers and public beta testers

The feature prevents someone from using stolen iPhone parts on another iPhone.

Apple says law enforcement requested it in an attempt to tackle the issue with the black market with stolen iPhone parts.

the iPhone along with its parts to the original owner of the phone.

it will ask for an Apple ID and password. Unless the original owner gives permission by typing it their ID and password,

After a while, all iPhone parts' IDs will be assigned to Apple accounts.