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A first-of-its-kind security analysis of iOS Find My function has demonstrated a novel attack surface that makes it possible to tamper with the firmware and load malware onto a Bluetooth chip that’s executed while an iPhone is “off.”
The mechanism takes advantage of the fact that wireless chips related to Bluetooth, Near-field communication (NFC), and ultra-wideband (UWB) continue to operate while iOS is shut down when entering a “power reserve” Low Power Mode (LPM).
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