Today, an iOS security researcher who earlier developed software to “jailbreak” older Apple iOS devices posted a new software tool that he claims uses a “permanent unpatchable bootrom exploit” that could bypass boot security for millions of Apple devices, from the iPhone 4S to the iPhone X. The developer, who goes by axi0mX on Twitter and GitHub, posted via Twitter, “This is possibly the biggest news in iOS jailbreak community in years. I am releasing my exploit for free for the benefit of iOS jailbreak and security research community.”