Firms with WiFi should beware of security threats

WiFi connectivity gets pretty complicated, but it's most commonly known as a way customers can access the Internet from their favorite coffee shop without plugging a laptop or personal computer into a wall outlet.

WiFi, or Wireless Fidelity, is made available by way of a wireless router, which is basically a box with an antenna. A router can be purchased at most stores that sell computer products.

The technology has been around since the 1940s, when it was predominantly used by the military, said David Hagan Jr., president of York Internet Services Inc. It has become more prevalent over the past couple of years because of the ability to deliver faster speeds at cheaper rates, Hagan said.

Various retail and restaurant outlets such as Panera Bread, Giant Food Stores and Starbucks make access to high-speed wireless Internet available to customers for free. Hotels have also picked up on offering this commodity.

For businesses using WiFi, there are many things to keep in mind.

"(WiFi) really means two things. It means wireless connectivity, but it also means a security threat, and a business has to understand both of them to make sure that they can secure it well enough, as well as get the advantage of having the connectivity they want," said Dave Baddorf, a network and systems engineer for Lower Swatara Township-based iCepts Technology Group Inc.

Maps of WiFi hot spots are available on the Internet at www.wifi maps.com. The lists are created by people who drive around and use Global Positional System technology to map areas where wireless signals can be accessed, Baddorf said. These maps allow potential hackers to find out where a wireless connection can be found that might allow them to crack into a company's sensitive data.

AWiFi access point can connect to computers within 300 to 500 feet of the router, Hagan said. While this means that others can use the wireless connection for free, it also means that data on a business' network can be tapped into if the proper level of protection is not applied.

This is important for businesses using WiFi for employee use only, but also for businesses offering WiFi to their customers. If a retailer has a back-office computer with significant information, it is important to secure that data so customers don't stumble upon it when connecting to the business' WiFi.

There are several ways to bump up the security level of a business' WiFi connection. One way is to use encryption. Firewalls are another option. The level of protection needed is based on the sensitivity of company's data, Baddorf said.

BY JESSICA BAIR

jesslcab@journalpub.com

Copyright Journal Publications Inc. Oct 5, 2007
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