iBooks 1.2.1 Detects a Jailbroken Device!

It has been discovered that a recent update to Apple’s iBooks application has been fitted out with a “Jailbreak Detector”. This is not a good sign for jailbreakers and seems to be affecting users who have recently jailbroken their devices with greenpois0n and redsn0w (Monte). Users have reported that when trying to open purchased books on their device they have been greeted with the error message;

There is a problem with the configuration of your iPhone. Please restore with iTunes and reinstall iBooks.

According to iPhone Dev-Team member @comex, whenever a user attempts to open an eBook purchased from the iBookstore that contains digital rights management code, the new iBooks tries to run unsigned or improperly signed binaries as a test to see if the device is jailbroken. If those binaries run successfully, the device is flagged as having been jailbroken and the eBook refuses to open.

Luckily, comex has already fixed this issue ready for the next release of the jailbreak tools, including Pwnagetool 4.2 which is due soon;

[UPDATE] Twitter User @jkurtz87 has tipped us that he is jailbroken tethered on 4.3 b3 via Redsn)w pointed at 4.2.1 with a custom 4.3b3 fw using pwned ibss and kernal cache and can use iBooks without issue.

Have you experienced this yet? What do you think to Apple’s latest tactic against Jailbreaking? Let us know below.