Security
OneKey Founder Warns Older iPhones Have Unpatchable Flaws That Put Crypto Seed Phrases at Risk
CoinCentral·November 1, 2026·1 min read
OneKey founder Yishi warned on November 1, 2026, that iPhone 11 series and older models have hardware flaws in the BootROM that software updates cannot fix. The checkm8 exploit affects iPhone 4S through X, and usbliter8, disclosed in June 2026, affects XS, XR, 11 series and SE 2, putting crypto seed phrases at risk.
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