In such a case, spoofing a MAC address that is already authorized is much easier than telling your ISP to register your new network card MAC address.
MAC addresses are most often assigned ( hard-coded into a network card) by the manufacturer and it can’t be changed easily, but you can change it or spoof it in the operating system itself which is termed as MAC spoofing or MAC address spoofing. In simple words, the MAC Address is a 6-byte number or 12-digit hexadecimal number that is used to uniquely identify a host on a network. The MAC address is your computer’s unique hardware number used as a network address for the network adapters like local area network or Ethernet address, IEEE 802, WiFi, and Bluetooth of your laptop and desktop computers. MAC address stands for Media Access Control address and it is nowhere related to the Apple Macintosh computers.
