Potential drawbacks of satellite broadband systems include the lack of security of the download data (which can be received by anyone within the satellite's footprint) and the delay inherent in the connection – as both upload and download data must follow the route from the ground to the satellite (located some 35785 kilometers above the Earth) and back, there is a minimum total delay or latency (depending on the location of the receive site) of about 0.5 seconds.