11.3.3 Geofencing

11.3.3 Geofencing Geolocation is the use of network attributes to identify (or estimate) the physical position of a device. The device uses location services to determine its current position. Location services can make use of two systems: Global Positioning System (GPS) This is a means of determining the device's latitude and longitude based on information received from satellites via a GPS sensor. Indoor Positioning System (IPS) This works out a device's location by triangulating its proximity to other radio sources, such as cell towers, Wi-Fi access points, and Bluetooth beacons. Geofencingis the practice of creating a virtual boundary based on real-world geography. Geofencing can be a useful tool with respect to controlling the use of camera or video functions or applying context-aware authentication.An organization may use geofencing to create a perimeter around its office property, and subsequently, limit the functionality of any devices that exceed this boundary. An unlocked smartphone could be locked and forced to reauthenticate when entering the premises, and the camera and microphone could be disabled. The device's position is obtained from location services, while policies and enforcement are facilitated by Mobile Device Management (MDM) software.