Embodiments include (i) receiving a first set of one or more messages generated by a mobile terminal, the first set of one or more messages comprising a first indication that the mobile terminal has detected a wireless beacon at a first time, and a second indication comprising a geographic location of the mobile terminal at the first time; (ii) determining whether the geographic location of the mobile terminal at the first time is within a threshold distance from a first physical location associated with the wireless beacon detected at the first time; and (iii) taking one or more further actions in response to determining whether the geographic location of the mobile terminal at the first time is or is not within the threshold distance from the first physical location associated with the wireless beacon.