Can Laptop WiFi Be Traced?

by Allan Hu
Laptop users often connect to public Wi-Fi services.

Laptop users often connect to public Wi-Fi services.

Laptop users often connect to public Wi-Fi services. Many people are concerned for their privacy on such connections and wonder if their activities can be traced to their own identities or machines. Others are concerned about possible interception of data. There are two feasible ways of identifying a user on an Internet connection: MAC address and IP address.

IP Address Explained

If you connect to a public Wi-Fi service, your IP address will be the same as everyone else's on that connection.

An IP (Internet protocol) address is a unique number assigned to users of a wireless network. For example, if you connect to a public Wi-Fi service, your IP address will be the same as everyone else's on that connection.

IP Address Identification

IP addresses will provide your approximate geographic location and Internet service provider.

IP addresses only identify the person or organization that hosts the connection. A person cannot simply look up your name and address using your IP address. The best she will get is your approximate geographic location and Internet service provider. It is only possible to get an actual registrant's information by court order.

MAC Address Explained

A MAC (media access control) address is a number assigned to network adapters.

A MAC (media access control) address is a number assigned to network adapters. For example, if you join a public Wi-Fi network, your MAC address will (most likely) be different from another person's MAC address because you have a different wireless card.

MAC Address Identification

Because your MAC address is static, wireless networks can track your connections and block your laptop.

MAC addresses are supposed to be unique, but manufacturers can sometimes neglect to ensure that every device is assigned a different number. In addition, MAC addresses can be "spoofed" by computer programs. Therefore, a MAC address is not considered personally identifiable information. However, because your MAC address is static, wireless networks can track your connections and block your laptop.

Ensuring Privacy

To ensure privacy over a public Wi-Fi network, make sure you have enabled an Internet security suite with a firewall.

To ensure privacy over a public Wi-Fi network, make sure you have enabled an Internet security suite with a firewall. Set any wireless settings to "public." Also, to be sure, do not enter any sensitive information over such a connection. Be aware that the connection host can intercept any data being sent over the connection.

About the Author

Allan Hu has been writing since 2001 for several popular, self-owned websites like new-electronics.net and legitblogger.com. He is educated in clinical and psychoanalytic psychology, as well as marketing and advertising.

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