In an attempt to discourage customers from jailbreaking their iPhones and iPads, Apple has updated its iBooks ebook application to stop working on jailbroken iOS devices.
According to the Social Apples blog, iOS devices that have been hacked using the greenpois0n jailbreak tool are unable to open legally purchased ebooks on its iBooks platform.
Apple considers jailbreaking - installing modified versions of the operating system - as a breach of warranty, yet the practice has been deemed legal by authorities in the US.
iOS jailbreaker Comex tweeted from his account “It seems that before opening a DRMed book, iBooks drops an improperly signed binary, tries to execute it, and if it works concludes that the device is jailbroken and refuses to open the book.”
However, Social Apples informs us that the iPhone Dev Team has updated the Pwnage Tool that uses 'feedface' exploit developed by Chronic Dev. The new jailbreak tool fixes the iBooks issue. Packages will also be available soon on the Cydia iOS app store that would allow users to bypass the iBooks jailbreak detection system.
Many are wondering whether this might be merely the beginning of Apple's attempts to install anti-jailbreaking mechanisms, with measures for other iOS apps to follow.