Joe, a user, has just installed his first home wireless router. Which of the following tasks should be considered to help secure the unit from any confirmed exploits?

Changing the router administrator username, while a good security practice, primarily helps prevent brute-force attacks against the default username, but does not address specific confirmed exploits that target firmware vulnerabilities.

Changing the router's broadcasting channel helps optimize Wi-Fi performance and reduce interference, but it does not address security vulnerabilities or exploits.

Firmware updates often include patches for known security vulnerabilities and exploits discovered since the device was manufactured. Updating the firmware ensures the router has the latest security fixes, protecting it from publicly known attacks.

Using a complex administrator password is a crucial security step to prevent unauthorized access to the router's configuration interface, but it doesn't protect against exploits targeting the router's underlying firmware or operating system.