WHAT IS MAC ADDRESS
what do we mean by mac address mac address stands for media access control it's a permanent physical and unique address assigned to network interfaces by the device manufacturer so whether you have a wireless card or a wired or ethernet card each one of these network cards come with a specific address that is unique to this card so there is no two devices in the world that would have the same mac address and this address will always be the same to this specific device even if you unplug it from your computer connected to another computer then this network device will always have the same address so you might already know that the ip address is used in the internet to identify computers and communicate between devices on the internet the mac address is used within the network to identify devices and transfer data between devices so each piece of data or packet that is sent within the network contains a source mark and a destination mac therefore this packet would flow from the source mac to the destination mark so because this is a physical unique address to each interface to each network device and because it is used to identify devices then changing it will make you anonymous on the network not only that but the mac address is often used by filters to prevent or allow devices to connect to networks and do specific tasks on the network so being able to change your mac address to another device's mac address will allow you to impersonate this device and allow you to do things that you might not be able to do so you'd be able to bypass filters or connect to networks that only specific devices with specific mac addresses can connect to and you will also be able to hide your identity
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