Geofencing is the digital marking of a geographical area within which a specific action or reaction is triggered when an object or person enters, leaves or moves within that area. It is often used in security systems to define boundaries and automatically respond to intrusions into certain areas, such as triggering an alarm or launching a surveillance drone. Geofencing can also be used to meet data protection requirements, for example by only allowing sensors to be actively used within the defined area or automatically pixelating camera images outside the virtual fence.
