Quote Originally Posted by checkra1n
iPhone 5s – iPhone X, iOS 12.3 and up

Q: What is checkra1n?
A: checkra1n is a community project to provide a high-quality semi-tethered jailbreak to all, based on the ‘checkm8’ bootrom exploit
checkra1n
Quote Originally Posted by Ars Technica
It has been a week since the release of Checkra1n, the world’s first jailbreak for devices running Apple’s iOS 13. Because jailbreaks are so powerful and by definition disable a host of protections built into the OS, many people have rightly been eyeing Checkra1n—and the Checkm8 exploit it relies on—cautiously. What follows is a list of pros and cons for readers to ponder, with a particular emphasis on security
What the newly released Checkra1n jailbreak means for iDevice security | Ars Technica