Why is it recommended to change the service set identifier (SSID) from the device default when configuring a wireless router?

Changing the service set identifier (SSID) from its default value is recommended primarily to enhance network security. When a wireless router is set up with its default SSID, it provides potential attackers valuable information about the device being used. Hackers can easily identify what type of equipment is in use by simply scanning for default SSIDs, many of which are publicly known and associated with specific brands and models. This knowledge can make it easier for them to exploit known vulnerabilities linked to those devices.

By changing the SSID to something unique and non-identifiable, the network becomes less conspicuous, thereby reducing the likelihood of unauthorized access. This practice adds an additional layer of security, as it makes it more challenging for potential intruders to target specific devices.

In contrast, changing the SSID does not inherently improve network speed, enhance network coverage, or necessarily make user access easier for guests. While those objectives are important in their own rights, they do not directly relate to the reasons for altering the default SSID for security purposes.