Home Wi-Fi networks allow users to access the Internet from any point in the home using laptops and other wireless devices. Following are tips to prevent unwanted access to a private home network:
- The best way to protect against a virus is to make sure an anti-virus program is installed on your computer. Most anti-virus programs can be set up to automatically scan your computer. It is very important to update the anti-virus software regularly. If you are an AT&T Yahoo! High Speed Internet or Dial member, you have access to anti-virus software, which helps protect against viruses and worms. Protect wireless networks by enabling the WEP or WPA – encryptions on the wireless router. Wireless routers that run on the 802.11b standard use WEP protection and those that are 802.11g compliant use WPA. WEP and WPA are approved wireless security standards that strongly increase the level of protection against intruders. AT&T Wireless Gateways are compliant with both WEP and WPA-encrypted devices.
- Use a router with a built-in firewall. A firewall prevents unauthorized Internet users from accessing private networks connected to the Internet. AT&T Yahoo! High Speed Internet members can receive the AT&T Wireless Gateway router which includes additional firewall hardware for added protection.
- Disable the SSID link to glossary broadcast. Wireless routers use a network name called the "SSID" that is broadcast over the air at regular intervals. When installing a wireless router, disable the SSID broadcast to prevent other Wi-Fi users from accessing the network.
Wi-Fi Access on the Road
Most public hot spots are in locations that are open to any user, such as airports, hotels and restaurants. This makes online security a top priority. Following are tips to help protect public Wi-Fi users:
- Install firewall software on a wireless device to protect against hackers, worms and viruses. AT&T Wi-Fi users benefit from an integrated firewall into the AT&T Wi-Fi Welcome page, providing secure access for transactions conducted on the site.
- Take precautions if sending personal information such as credit card numbers or Social Security numbers when using a public Wi-Fi hot spot.
- Be aware of the surroundings. Make sure not to leave sensitive information out in the open for others to see.
Business professionals can take extra precautions when using public hot spots by using a Wi-Fi service that supports Virtual Private Network (VPN) connections. A VPN connection provides secure access to company networks, allowing business professionals to conveniently access e-mail and files. Before leaving the office, business travelers should make sure their company provides a secure VPN solution and has it accessible on their desktop. AT&T Wi-Fi service supports VPN connection software, providing added convenience for business travelers.

