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Even with a WPA2 encrypted network, the MAC addresses on those packets are not encrypted.

So, you may ask, how can they get your MAC address if they can’t connect to your network? Well, that’s an inherent weakness with WiFi. A network hacker, which can literally be anyone since the tools are so easy to use, can easily figure out the MAC addresses on your network and then spoof that address onto their computer. The main reason why it doesn’t make your network more secure is because it’s really easy to spoof a MAC address. Why It Doesn’t Make Your Network More Secure # Instead, it’s more of an administration tool that you can use to control whether or not your kids can access the Internet at certain times during the day or if you want to manually add devices to your network, which you can monitor. There are some legitimate cases where you can use MAC address filtering on your network, but it won’t add additional security. The real fact of the matter is that it really provides no extra security and can actually make your WiFi network less secure! Don’t worry, I’ll explain more about that below. Unfortunately, this feature is marketed as a security enhancement that you can use if you are technically-savvy and willing to put in the effort.