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Older iPhones Have an Unfixable Security Flaw - Why It Can't Be Patched and the Models Affected

The flaw affects iPhone Boot ROM code and requires physical access, giving researchers a path to build jailbreaks and other exploits, Paradigm Shift said.

Summary by ZDNet
Here's how to tell if your device is at risk and what to do about it.

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A group of security researchers from Paradigm Shift has discovered a vulnerability in older models of iPhone, iPad and Apple Watch that can be used to ‘jailbreak’ the device. The bug, called ‘usbiter8’, is not a software error that Apple can fix with an update, but a physical design failure on certain chips. According to the study, devices using A12 and A13 chips, as well as other devices using S4 and S5 chips, are affected. The first group incl…

·Spain
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It also affects other Apple devices and cannot be fixed.

·Budapest, Hungary
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Technologueid Jakarta Cybersecurity researchers from Paradigm Shift have revealed a built-in security flaw in a number of Apple devices that is considered unpatchable through updates,...

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Báo điện tử Dân Trí broke the news on Monday, June 22, 2026.
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