Motherboard has not been able to independently verify exactly how it leaked, but five sources in the jailbreaking community familiar with the leak told us they think that someone obtained a development iPhone 11 running a version of iOS 14 dated December 2019, which was made to be used only by Apple developers. According to those sources, someone purchased it from vendors in China for thousands of dollars, and then extracted the iOS 14 internal build and distributed it in the iPhone jailbreaking and hacking community.

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