Hiding or changing the broadcast of your SSID is a security measure. An SSID that is not displayed prevents outside users from recognizing your network. It can also prevent any attempts to hijack your network.
An SSID is any name you want to give to your wireless network router (to identify it) up to 32 characters long. Frequestly the SSID has a default that is supplied by the router manufacturer. it is important ,not to broadcast ur ssid ,also change ur ssid name.
The exact method to disable the broadcast of your SSID will vary depending on your router. Most routers have an option directly within the settings which will allow you the option to mask the broadcast of your SSID.
SSID
It's recommended to turn off ssid broadcast.
Ssid broadcast
Disabling the SSID Broadcast.
firewall disable
overlapping channel,broadcast SSID
The SSID is the name that identifies a particular wireless network. If the SSID is public, it will be seen by anyone with a WiFi device. If it is not public, then the name will not be broadcast, but must be typed into a device, so a name that uses alt-characters will be difficult to input.
SSID Broadcast
disable an SSID broadcast
Change the SSID