When you run kextstat command to see the list of kernel extensions loaded in the system, you might come across kext named com.apple.Dont_Steal_Mac_OS_X (7.0.0) being loaded all the time. You might me wondering what is the role of this kernel extension. com.apple.Dont_Steal_Mac_OS_X prevents OS X from being used on non approved Intel hardware – as OS X is licensed only for use of approved Apple Intel hardware. This kext is used to control software piracy of OSX on non Apple supported hardwares. Hence its role is to detect and fail the OSX installation on non apple certified hardwares.