API which was released by Apple as part of the mobile device management (MDM) that bundles to IOS 4.0, has been disabled in the IOS 4.2. It is confusing, because previous API MDM allow third-party applications, such as Sybase’s Afaria AirWatch or, to check for unauthorized modifications to the file system. Less than six months after introducing IOS 4.2, Apple quietly making the API to detect devices on IOS 4.2-jailbreak.
Although Apple devices that are considered illegal by Apple jailbreak, but the U.S. government recently passed jailbreak the device as something that is legal.
Whatever it is Apple added in IOS to detect the jailbreak, it must be accessible and have the ability to be change .It means, if it would be a useful detection method can also be circumvented.
MDM third parties have created their own utility to check the jailbreak, but the detection of API jailbreak Apple MDM applications granted direct access to information system IOS. That is, the device IOS 4.2 jailbreak will be automatically rejected by Apple’s iTunes or the device itself.
