A retail location not using wireless devices must routinely check for what?

The correct focus for a retail location that does not utilize wireless devices is the routine checking for the presence of unauthorized wireless devices. This is crucial because if unauthorized devices are introduced into the environment, they can pose significant security risks, potentially allowing for data breaches or unauthorized access to sensitive information.

Even in environments where wireless technology is not being actively used, there remains the risk that unauthorized individuals could deploy wireless devices nearby that could intercept communications or access the network. Regularly scanning for these devices ensures that the security posture of the retail location remains strong, even in the absence of its own wireless systems.

In contrast, while firmware updates, employee device compliance, and guest network activity are also important elements of a comprehensive security program, they do not specifically address the unique risks associated with the possibility of unauthorized wireless access in a setting where wireless devices are officially not employed. Thus, maintaining vigilance against unauthorized wireless devices is a critical task to enhance overall security.