Wireless LAN at home, in institutions and organizations

Cheap and available wireless devices are commonly used at our home and in institutions. Wireless local area networks (WLAN), new type of networks set us free from problems of changing wall socket location. That kind of LANs makes access to the Internet more comfortable. We do not have to drill holes in walls and put cables to connect another workstation to the existing network. To avoid such problems we can plug the access point install wireless cards and use the wireless LAN to connect to the Internet. It is a good idea to go this way, but there are some questions associated with that: “Are wireless networks secure?”, “Don’t our data be eavesdropped by intruders?”. That article depicts and explains steps that should be taken to build secure wireless LAN in different places, home institutions and financial institutions with top-secret data. The currently used methods of protecting WLAN from unwanted access are presented here. The article presents also some non-standard safeguards.