3. Deactivate SSID broadcast.
SSID is short for Service Set Identifier and is the name of your wireless network that is broadcast by a router into the radio spectrum. It can be seen by Wi-Fi enabled computers looking for a network to connect to. You can turn this broadcasting feature off so that the router appears invisible to casual wireless snoopers. Click the Home tab, then the Wireless button, and choose the Disable button next to SSID Broadcast. See Figure 3.
Figure 3 Turning off the SSID broadcast feature hides the router from casual wireless surfers.