Spark Zheng, an Android and iOS Senior Security Engineer at Alibaba, tweeted a link to the video saying, "iOS 11.3.1? It's not a problem. :-)".
Despite showing it off, the security researchers are unlikely to release their jailbreak; however, it's possible that the exploit could surface once patched by Apple.
Notably, the Tencent Keen Security Lab also demonstrated a jailbreak of iOS 11.3.1 at the Infiltrate Security Conference in Miami a couple weeks ago.
We'll let you know if there are any further developments. Check out the video below and please follow iClarified on Twitter, Facebook, Google+, or RSS for updates.