Failbreak

The term failbreak refers to a jailbreak that cannot be released, which makes it a fail to some extent. This term came into discussion when chpwn showed a screenshot of his new iPhone 5 running Cydia shortly after its launch on 19 September 2012. Shortly afterward, usage of this term picked up, and on 19 October 2012 even planetbeing tweeted that he upgraded the failbreak with a kernel exploit so that tweaks actually work on the iPhone 5, "almost a full tethered jailbreak."

For the most recent "failbreak" (for iOS 6), the issue preventing its release is that it requires an Apple developer account and developers are under an NDA.

External References

• @chpwn showing screenshot of his jailbroken iPhone 5
• direct link to image
• @pod2g confirming that chpwn is trustable
• @chpwn mentioning the term the first time
• @planetbeing telling about adding the kernel exploit