SSID or Service Set Identifier (SSID) is an identifier for wireless LANs [Wireless Access Points (AP)], consisting of a character string which identifies the name of the network [and often also its location] to relevant applications; used in IEEE 802.11 standards. In practice, every device connecting to the Wi-Fi must have that SSID to know how to connect and get connected. In other words, if your Wi-Fi router has SSID “.
The SSID broadcasts the name of a Wi-Fi network, and it’s required for connecting to most Wi-Fi networks. Many people mistakenly assume that SSIDs are a security feature, but they’re not; instead, they make your network visible while hiding nothing at all. An alternative to broadcasting your SSID would be to change the default configuration to have no visible SSID at all.
One benefit of SSIDs is that they provide a way to distinguish between different wireless networks. If you’re in the range of two or more Wi-Fi access points, all with the same SSID, you’ll need to connect to both and choose one as your primary network. You can then use the secondary network for specialized purposes like accessing online content while traveling outside of the main provider’s network range.
Choose a unique SSID. Don’t use default configurations, and make it easy for people around you to discover your network’s name (which is how they connect to your Wi-Fi).
Use an obscure SSID if possible and take special care when choosing one, such as using passwords or characters not easily guessed by strangers who may be in the range of your Wi-Fi network. Be sure to change the SSID from its default, which can easily be discovered through Google.
To see your network name, look for an entry like ” Wireless Network Connection ” on your computer’s control panel or main screen, depending on the operating system you use. You’ll also see its SSID there if it were set to broadcast.
Change both the name and password of your Wi-Fi network regularly. Many tools scour catalogs of collected SSIDs and passwords, so taking these simple precautions is essential, especially because hackers may find a way in without knowing it themselves.
Type in the name of your Wi-Fi router and “SSID” into a search engine to learn specific information if you’re unsure how to change it.
Service Set Identifier ( SSID )
A service set identifier ( SSID ) is used by wireless devices to identify wireless networks. The SSID comprises an alphanumeric code that identifies the physical network, not any security measures implemented.
In other words, changing the SSIDs will not improve or enhance security as many users think; somewhat, the Security Functionality should be enhanced by setting up encryption of data between a Wireless Access Point ( AP ), which acts as a bridge between wired and wireless network, and Wireless Station (STA) which is a wireless client that connects to AP.
The SSID serves two primary purposes: First, it allows wireless devices to distinguish the desired network from others in the same area. For example, an office building may have many mesh access points throughout it; each mesh link can operate on the same 2.4- GHz frequency and thus be seen as one extensive Wi-Fi network by any device within range of at least one of them.
When a station attempts to connect to this “virtual” network, only those access points with matching SSIDs will respond; other access points ignore all requests for a connection coming from stations not authenticated as part of their networks.
Second, an SSID acts like a nickname for a wireless network and can be useful to the user or administrator when choosing an appropriate name.
To achieve more security in Wi-Fi networks, one should encrypt the communication between Access Point and Station (STA). Encryption is a method of protecting data from unauthorized access by using an encryption algorithm.
As you may know, Wi-Fi uses the WEP encryption standard, which was cracked in 2005 because of its weak key length and easy to obtain default passwords for the wireless network administrator.
So, suppose we want our Wireless Network to have a more secure way of communication. In that case, we must adopt a stronger form of encryption algorithms like WPA2 or, even better, use VPN connection (Virtual Private Network) technology.
Speaking, SSID does not protect Wireless Network from unauthorized access because it is a unique number easily known by anyone who owns a wireless station. But, encryption of the communication between AP and STA will provide security against intrusion, data sniffing, and other harmful activities, which can be done through Wireless Network.