Use public wireless networks more safely

Related Links • 5 safety tips for using a public computer • 7 ways to protect your laptop on the road What's a service pack? A service pack is a way for you to download product and security updates. Service packs keep your software current so you don't have to worry about getting out of date. What is encryption? Encryption is a way of encoding information to keep it private and to protect it from people who are not authorized to see that information. What's an operating system? An operating system, sometimes called an OS, is the software that controls how your computer uses its memory, disk space, and more. Popular operating systems include Microsoft Windows and Apple Macintosh.

If you have a laptop computer with wireless connectivity built-in or through an inserted wireless network card, you can now surf the Web in some coffee shops, airports, hotels, and even fast food restaurants using public wireless networks, or WiFi. Here are three quick tips for enjoying the convenience of WiFi and helping to protect your privacy.

Use a firewall
A firewall is a protective boundary that monitors and restricts information that travels between your computer and a network or the Internet. If your computer uses Windows XP and you've installed the latest service pack, then you have a new and improved built-in firewall that's turned on by default. In just a few clicks you can easily configure Windows Firewall to provide better protection when you're using a public wireless network. For more information see Understanding Windows Firewall. If your computer doesn't use Windows XP, see Use an Internet Firewall.

Hide your files
You can secure your home wireless network with different types of encryption with varying effectiveness. If you're using public WiFi, network encryption is often out of your control. Check the privacy statement on the network's Web site to learn more about the type of encryption they use. If they don't have a privacy statement, you'd be better off not using the network.

If you keep a lot of personal or financial information on your computer consider investing in an operating system that includes file protection. Windows XP Professional has the tools to protect your information through encryption. To learn more, see Encrypt Your Data to Keep it Safe.

Tip:  If you must enter credit card numbers while using a public wireless network, make sure you see a locked padlock icon at the bottom right corner of the browser window, and make sure the Web address begins with https: ("s" for secure).

Don't type in credit card numbers or passwords
The measures listed above will provide some protection against casual hackers and identity thieves who prey on wireless networks. But if the bad guys are determined enough, they will eventually find a way to get around any security system. If you want to be safe, avoid typing any sensitive information, such as your credit card number or any other financial information, into your computer while using a public wireless network.
 

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