A Mac Address is a unique identifier for a device on a network. Every Mac has a unique Mac Address assigned to it at the time of manufacture. Knowing a Mac Address can be useful for a number of reasons. For example, you may need to locate a lost or stolen Mac, or you may want to change the IP address of your Mac.

There are a few different ways to find a Mac’s Mac Address. One way is to open the Network Preferences window and select the “Network Interface” tab. The Mac Address for each interface is listed next …