Late last week, Network World reported that Apple has quietly removed from iOS an application programming interface (API) that could detect jailbroken devices. The API had been used by several mobile device management applications to help corporate system administrators determine whether jailbroken devices that could pose a risk due to malware installation were running on their networks.
The new API was part of a bundle of mobile device management (MDM) APIs released in June with iOS 4.0. These APIs were available to third-party MDM applications, such as AirWatch or Sybase's Afaria. With the new APIs, these servers could access directly a range of features and information in iOS or on the device. But in the recently-released 4.2 version, the API intended for detecting jailbreaks has been either removed or disabled.