Fortunately for a hacker, it is also exceedingly easy to change or spoof the MAC address of a Wi-Fi device. There currently aren't many ways besides MAC addresses for a Wi-Fi access point to differentiate between wireless devices trying to join the network. These devices have already either accepted the terms of service, paid, or otherwise gone through the process needed to register them with the network's MAC filter, and they are free to access the internet without needing to go through the portal again for a period of time.ĭon't Miss: How to Create an Evil Twin Wireless Access Point to Eavesdrop on Data These public wireless networks manage their security by having a secret "white list" of MAC addresses belonging to devices which have already gone through the authentication process. Routers can allow or prevent devices from accessing the internet based on its MAC address alone. In order to connect to one of these public hotspots, or any router, a device's MAC address is needed to assign the device an IP address when attempting to connect, ensuring that any requests the device makes to load content from the internet are returned back to the correct IP (and MAC) address. How MAC Addresses Play a Key Role in Connecting
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