Wireless Security:

A wireless network is very much like a cordless telephone. There is the router, which is analogous to a cordless phone's base unit; and a computer (often a laptop) equipped with a wireless network adapter, which is analogous to a cordless phone's handset. The two pieces communicate by two-way radio. Anyone with the proper radio equipment can listen in on the "conversation."

Cordless phones and wireless networks can interfere with one another. Wireless networks operate using the 2.4GHz frequency, the same as used by many corless phones. The symptoms of interference can be noise on the phone, or limited range of the phone handset or wireless computer. One solution is to replace the cordless phone with a newer model, one that uses the 5.8GHz frequency.