How to Secure My Computer in WiFi Hotspots
Several potential security risks await you when you connect to a public wireless access point. Hackers often frequent areas where public hotspots are available, hoping to breach a computer's security or intercept communication containing data that could be valuable. However, you can take a number of steps to maximize your security when using a public Wi-Fi hotspot.
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Instructions
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Disable file sharing to prevent others from browsing your shared files and folders. In Windows Vista and 7, browse to the "Network and Sharing Center" icon on the Control Panel and switch off every radio button under "Sharing and Discovery."
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Install firewall software and make sure it is running. If you are running Windows XP or later, the Windows Firewall is already installed on your computer. Make sure it is running by browsing to the "Windows Firewall" icon on the Control Panel, then clicking "Change Settings" if "Windows Firewall is on" is not displayed.
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Avoid accessing sensitive information, such as a bank account, at public Wi-Fi hotspots. Over an unencrypted connection, your broadcasts may be intercepted and read by others, which can result in your passwords being stolen. Passwords can be intercepted even over wireless connections with weak encryption such as Wired Equivalent Privacy (WEP). Access sensitive information only on wireless networks using strong encryption.
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Connect to a Virtual Private Network (VPN) if you are working from a Wi-Fi hotspot. A VPN connection is secure and encrypted, making it extremely difficult for the information that you send to be intercepted.
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Know the name of the access point you are connected to. In an area known to be a public wireless access point, some unscrupulous individuals may set up their own access points in an attempt to lure people into connecting to them.
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References
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