iOS 12.4 release in July came with a number of minor fixes and improvements, but next to them was one thing that Apple had no intention of: updating and unwittingly re-opening a security hole that made it easier for modern iPhones to be jailbroken.
Apple today released a new emergency patch - iOS version 12.4.1 - in response to an error, which also happens to give hackers free access to iPhone user accounts.
Against some background jailbroken iPhone or iPad which has been modified so as to allow the user (or third parties) to install applications that have not been approved by Apple and, bypassing the app store, and modify the device in various ways that are not normally allowed in the OS.
- What is jailbreak?
- iOS 12.4 and watchOS 5.3 update to fix walkie-talkie vulnerability
The bug was originally found by Ned Williamson, working with the Google Zero project, who was thanked in Apple's release for iOS 12.4.1 while finding that "a malicious application may be able to execute arbitrary code with system privileges."
Also credited in the notes is the security researcher who goes by the pseudonym Pwn20wnd and is responsible for the first development and release of a working jailbreak for iOS 12.4. Speaking from the motherboard last week, Pwn20wnd stated that "it's very likely that someone is already exploiting this bug for bad purposes."
If you regularly, without Jail users and your device is not updated to iOS 12.4.1 We highly recommend that you do this, as security experts warn that it's significantly easier for bad actors to sneak malicious code into public jailbreak applications.
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