If you store your seed phrase on an old iPhone, check the model today. OneKey's founder warns that iPhone 11 and older have a chip flaw Apple can't patch. It sits in the BootROM, code burned in at the factory. What it means: - An attacker needs the phone in hand. No internet needed - Wiping the phone or using airplane mode doesn't remove it - It doesn't hand over your seed by itself. Your passcode and the Secure Enclave still stand in the way, but 6-digit PINs and short wallet passwords make attacks easier What to do: 1. Settings > General > About. iPhone 11 or older? Stop keeping seeds on it 2. Generate a NEW seed on a trusted device and move your funds. A new address under the old seed doesn't help 3. Use a long alphanumeric passcode 4. If it's been out of your hands (border check, hotel, borrowed charger), move the funds now OneKey says iPhone 12 and newer have no public BootROM exploit.