What is a security vulnerability associated with SSID broadcasting?

The correct answer identifies a significant concern with SSID broadcasting, whereby the network's name is repeatedly transmitted, making it easily detectable by nearby devices. When an SSID is broadcasted, anyone within range can see the network's name, which exposes the identity of the network. This visibility can provide potential attackers with valuable information about the network, increasing the likelihood of unauthorized access attempts.

By openly displaying the network's identity, SSID broadcasting can lead to increased risk since malicious individuals might target the network specifically, knowing its name and potentially speculating about the type of security measures in place, based on common practices associated with certain network names.

In contrast, preventing unauthorized access, enhancing encryption, and limiting network visibility are not direct vulnerabilities related to SSID broadcasting. While broadcasting does not prevent unauthorized access (in fact, it may facilitate it), encryption is a separate security layer entirely, and limiting network visibility is contrary to the act of broadcasting an SSID in the first place. Thus, understanding the implications of SSID broadcasting is key to securing wireless networks effectively.