"Apple iBooks users who jailbreak their iPhone may find
themselves locked out of their own book collection.
"Apple has allegedly built a jailbreak checker into iOS version
4 and above to see if someone's iPhone has been jailbroken with a
hack known as greenpois0n, according to the Web site Social Apples.
If the hack is found, then Apple reportedly blocks access to
content in the latest version of the iBooks e-reader app.
"The unlucky iBooks user who reported the experience on Social
Apples ran into the following error when trying to access an e-book
on a jailbroken device: "There is a problem with the configuration
of your iPhone. Please restore with iTunes and reinstall
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