Alibaba Pandora Labs researchers have already been able to Jailbreak the iPhone X with the version of iOS 11.2.1 and iOS 11.2. They have also commented that this jailbreak is untethered, which means that it is not necessary to jailbreak again when restarting it.
In the image above you can see the Cydia app on the iPhone X. Although this is not a definitive proof that they have achieved it, it is the only one we have now. The bad news is that these researchers will not publicly launch the Jailbreak, as they have only done so for security research purposes.
Song Yang, head of Pandora labs, has said the following:
Although iOS 11.2 fixes some security issues, we confirmed the new iOS will still be jailbroken on the first day it was released. Although we escaped iOS 11.2 quickly, we were limited to security research purposes, our team won’t provide any jailbreak tool.
Although it saddens us a bit to know that they will not share it with all those who want to Jailbreak, the other researchers who want to share it, like Pangu’s, may find a way.
Note that this is not the first time that someone has jailbroken the iPhone X running on iOS 11. In November, Liang Chen of Tencent Keen Lab, showed everyone the first Jailbreak to this device at a conference on security in South Korea.