Apple has released iOS 12.4.1 to fix a critical jailbreak vulnerability, like it or not, that was initially patched by the company in iOS12.3 but was then accidentally got reintroduced in the previous update. An anonymous researcher who goes by the online alias “Pwn20wnd” released a free jailbreak for iOS. The vulnerability allowed for hackers to jailbreak updated Apple devices, including the iPhone XS, XS Max, and XR or the 2019 iPad Mini and iPad Air. Apple also acknowledged the researcher for bringing the vulnerability to their attention.
Source: https://thehackernews.com/2019/08/apple-ios-iphone-jailbreak.html