An SSID stands for Service Set Identifier, which is a unique ID that can be made up of case-sensitive letters, numbers, and special characters like dashes, periods, and spaces. It is the name assigned to a Wi-Fi network when a router is set up. Essentially, an SSID is the name of a network, and it is used to identify the particular network that a user wants to connect to. When a user attempts to connect their device to a Wi-Fi network, they see a list of all available Wi-Fi networks and use the SSID as a name to identify the particular network they want to use. SSIDs can reach up to 32 characters in length. Wireless routers and access points broadcast SSIDs so intended users can find and connect to a wireless network. Manufacturers usually create default SSIDs for routers, but users can (and should) change them to whatever they like. If a user wants to connect to their own wireless network but doesn’t know their SSID, they can connect their router to the computer via an ethernet cable and log into its web interface.