What solution might Stan implement to restrict device access based on physical location?

Geofencing is a solution that restricts device access based on physical location by using GPS or RFID technology. By defining a virtual boundary, organizations can control access to networks, applications, or resources based on whether a device is within or outside this predefined area. When a device enters or exits the geofenced area, specific actions can be triggered, such as granting or denying access, alerting administrators, or enforcing security policies.

This approach is particularly effective for enhancing security in mobile environments where users may access sensitive information from various locations. By leveraging geolocation data, organizations can ensure that only devices physically located in secure areas are granted access to certain resources, thereby reducing the risk of unauthorized access or data breaches from remote or potentially unsafe locations.

In contrast, the other options do not focus specifically on physical location in the same effective manner as geofencing. For example, IP whitelisting restricts access based on predefined IP addresses but does not account for users who might connect from different locations. A VPN creates a secure tunnel over the internet for safe connections but does not inherently restrict access by physical location. MAC filtering allows access based on device hardware addresses but does not differentiate between those addresses based on geographic position.