Third Jailbreak of iOS 7.1.1

In addition to i0n1c and winocm, there's now a third party claiming to have jailbroken iOS 7.1.1.
Researchers Yeongjin Jang and Tielei Wang of the Georgia Tech Information Security Center (GTISC) disclosed that they jailbroke iOS 7.1.1 late last month. Jang (@blue9057), a grad student at Gatech, has posted a video to YouTube demonstrating the jailbreak.

 
This is what I did on iPhone 5s, with iOS 7.1.1. The work includes followings. 1. Bypassing sandbox, 2. Getting root permission, and 3. bypassing codesign


@osxreverser and @i0n1c appear to confirm it's legit.

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