Apple owns copyrights in iOS, the operating system software used for Apple devices like the iPhone, iPad, and iPod Touch. Corellium offers a software platform called CORSEC that simulates various mobile device operating systems, including iOS, to enable mobile app developers to test the security and integration of their app software by mimicking how it will run on actual mobile devices. While iOS is designed to run on Apple devices, CORSEC simulates the iOS operating system on non-Apple hardware, such as a desktop computer. CORSEC takes iOS software that Apple makes available to the public for free, and modifies it to (1) enable it to run on non-Apple devices, and (2) add features useful for security research, such as a file browser and the ability to see and halt running processes. As a result, CORSEC provides app developers and security researchers with virtualization software that contains a mixture of Apple’s code and Corellium’s code, which displays the following user interface to CORSEC users: