Image copyright Getty Images Image caption Looting of Apple stores has led some to close temporarily iPhones stolen in lootings of Apple stores in the US are tracked, disabled and the local authorities notified, according to messages displayed on their screens.
Apple has temporarily closed some of its US stores following a series of attacks, amid protests over the death of George Floyd.
It has long been rumoured that the devices on display in Apple stores have software installed so that they can be tracked if any are stolen.
One image of a device posted to Twitter showed the message: "Please return to Apple Walnut Street.
Purchased devices do not have such software on them but they can be remotely locked by Apple if they are subsequently stolen or lost.