Worried about the vulnerability of the GPS-enabled devices you are making/selling/giving out? No? Maybe you should be! Personal-safety GPS device presents security risk. CNet News.
[And not just GPS devices. From ZDNet, an article about how GPS devices in vehicles and smartphones have been used by police to track down theft–and for domestic abusers to track down their victims. Smartphone information is fed from Apple and Google up to several times an hour. Great for the cops, not so great for vics. Big Apple, Big Google, Big Brother–Ed. Donna]