When you add WIFI to your network, it allows you to walk around without wires. It also makes it easy for hackers and crackers to get on your network. When you add WIFI to your network, you want to make sure it is secure. That means no WEP and open access. It also means hiding your SSID. You should also consider WPA2 enterprise for the best security. WIFI is a very useful technology, but it also can be very dangerous if configured incorrectly.