Along with Pangu iOS 7.1.2, 7.1.1 and 7.1 jailbreak there is one more tool that supports at least iPhone jailbreaking. It is known as GTISC iOS 7.1.2 jailbreak for Mac and Windows and it was created by a group of students from the Georgia Tech Information Security Center [GTISC].
This new program is not available for public download, and we posted a guide on how to jailbreak iOS 7.1.2 on Windows. Here let's talk about GTISC jailbreak on Mac.

About Mac 7.1.2 Jailbreak with GTISC

It is now unclear if students Yeongjin Jang and Tielei Wang are planning to make their exploits public or not. So far Jang known as @blue9057 demonstrates his iPhone 5S being jailbroken on iOS 7.1.1. Jang also noted that this program supports iOS 7.1.2 jailbreak tether meaning you have to run special recovery application to maintain jailbreak status after each reboot. There is another public jailbreak for iOS 7.1.2 for Mac and Windows called Pangu. It was created by a group of hackers from China. It is free to use and available to public. Unlike GTISC creating, Pangu offers jailbreak for iOS 7.1.2 untethered for iPhone and other iDevices. In other words, your jailbroken status remains after reboots. It only disappears after you update to a newer firmware version.