Techniques for mobile geofencing may be realized as a method including: receiving geofence parameters comprising at least one target, wherein the at least one target includes a mobile target; receiving updated position data associated with the mobile target and updating the position of the mobile target in response to the updated position data; monitoring a position of a client device; and determining that the monitored position of the client device transgresses the geofence parameters, wherein the determination includes determining that a distance between the updated position of the mobile target and the monitored position of the client device is greater than a first threshold distance.