For example, if your iPhone is stolen on a university’s campus, the IT department may be able to use its MAC address to trigger an alert when the criminal connects your iPhone to a university network.
MAC addresses can also be used for less nefarious purposes. Some universities and employers may request your iPhone’s MAC address to monitor or limit your access to certain Wi-Fi networks. Your iPhone’s Wi-Fi interface has a permanent, unique serial number called a media access control (MAC) address. AirPort Apple Apps Backups Developer Education Email Hardware Internet iPad iPhone Mac Music Network Photos Security TV Weekend Wonk
