OneKey Founder Warns Older iPhones Have Unpatchable Chip…
By Karthik Subramanian
AI summary of the source article
OneKey founder Yishi Wang warned crypto holders against storing wallet recovery phrases on older iPhones from the 4S through 11 series. Unpatchable BootROM hardware vulnerabilities allow attackers with physical access to execute unauthorized code before iOS loads.
Why it matters
The warning challenges the practice of repurposing older smartphones as offline cryptocurrency wallets by performing a factory reset, disabling network connectivity and storing recovery credentials locally.
Key facts
- Two BootROM exploits, checkm8 and usbliter8, affect iPhone models ranging from the iPhone 4S through the iPhone 11 series.
- Because the vulnerabilities reside in the processor's permanent BootROM, Apple cannot fix them through standard iOS software updates.
- Wang advised users who stored recovery phrases on affected devices to generate new phrases and migrate assets to trusted environments.
Source excerpt · FinanceFeeds
OneKey founder Yishi Wang has warned cryptocurrency holders against storing wallet recovery phrases on older iPhones, citing hardware-level vulnerabilities that cannot be repaired through conventional iOS software updates. In an October 31, 2026 post on X, Wang identified two publicly documented BootROM exploits affecting devices from the iPhone 4S through the iPhone 11 series, including certain s…