Devices can have two or more network interface cards. This applies to computers, phones, tablets, printers, but also a router or an Apple TV. Without a MAC address, no communication can take place. It’s assigned to each network interface card when it’s manufactured and serves as a permanent, physical identifier for that network interface on a local network. MAC address stands for Media Access Control Address. But if this is true, then what’s the modern-proof alternative? We’ll tell you in this article. Moreover, as MAC address filtering does give companies a false sense of security, it makes them extra vulnerable to security breaches. MAC address filtering is actually far from safe, as it’s very easy to spoof a MAC address and gain access to the network unnoticed. Today, many organisations still use it to manage IT access, by letting in all whitelisted MAC addresses while keeping out the ones that aren’t. When you’re an IT manager, you’ve probably heard of MAC address filtering.
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