SSID cloaking is a security measure that involves hiding the Service Set Identifier (SSID) of a wireless network from being broadcasted openly. This prevents the SSID from appearing in the list of available networks on devices within range, reducing the likelihood of unauthorized access attempts. While it does not provide complete security on its own, it is considered a layer of defense that can deter casual attempts to connect to a network. It is important to note that SSID cloaking should be used in conjunction with other security measures, such as strong encryption and authentication protocols, to effectively secure a wireless network.