Someone with access to that specific wireless router is now able to see your MAC Address and if that someone has some 'bad will' power could harm you using that information. Now, by connecting to the access point your PC automatically sends your MAC Address to the access point, while the access point registers your PC Name and MAC Address and grants you the connection. You decide to connect to the internet through that access point using your laptop's wifi adapter. Let's say you carry your laptop and visit a local library or a public wifi access point. I know, I'm beginning to sound weird now. What you need to know is that MAC Address is all someone needs to trace your network adapter, meaning where it was designed, where and when you purchased it and all data connected to that purchase. More info about MAC Addresses can be found here. This unique ID in networking is called Physical MAC Address. Just like every other device in the world, each one has a unique ID in order to trace where it was manufactured, by whom and when. Why should you change your wifi's MAC Address?įirst of all every PC running windows, that is connected to the internet uses a networking device such as an Ethernet or WiFi network adapter.

( If you are an advanced user go straight to the Wifi section) Now, let me explain what am I talking about and how to do that. The whole process is about creating a key in registry, and I think that's an easy thing to do. There is a lot of applications around promising to do that but you don't actually need an application. I've searched around the web and there's a mess going on about changing it on Windows 7, so I'll try to show the easiest possible way to you. Hello everyone, recently I came up with an obsession of changing my wifi's physical MAC Address. Why should you change your wifi's MAC Addressģ.

How to check mac address windows 7