|Global positioning system (GPS) software||
Software that is based on a satellite navigation system that provides location and time information anywhere on the Earth where there is a clear line of sight from the device that the software is being used on to four or more GPS satellites.
|Gray hat hackers||
Skilled hackers who sometimes act legally, sometimes in good will and sometimes not. They are a hybrid between white and black hat hackers. They usually do not hack for personal gain or have malicious intentions, but may or may not occasionally commit crimes during the course of their technological exploits.