The Find My protocol has a couple of interesting mechanisms to protect your privacy.
Add background to .dmg tv#
For example, the Samsung TV was hacked by the NSA including a Fake-Off mode to spy on people. Never trust a device to be off, until you removed its battery or even better put it into a Blender.
Add background to .dmg Bluetooth#
The new Find My feature is the first time that a large public got aware of the AOP as well as the possibility of a Bluetooth chip running autonomously.Īssuming that someone hacked your iPhone and spies on you, they might as well show a correct "power off" screen and then not turn the iPhone off. In case you want to debug this on your own, the HCI reset is the last information visible in Apple's PacketLogger, while the idevicesyslog still shows BlueTool output and commands. I did not analyze how long the time interval for each advertisement is, but it's likely not the default 15 minutes and a larger interval instead. Overall, there are 80 advertisements written to the Bluetooth chip. Immediately after the iPhone turns "off".Įach Find My advertisement starts with 0x4c 0x00 0x12 0x19, and this byte sequence is also contained in the BlueTool output. Then, finally, the Bluetooth chip tells that it goes into the low-power mode (LPM). These are the beacons being configured on the Bluetooth chip. The last steps are repeated multiple times and with a lot of random looking numbers. Sep 30 22:02:59 bluetoothd : PowerManager power state is 0 Sep 30 22:02:59 bluetoothd : Sending BT Stats to CoreAnalytics for Sep 30 22:02:59 bluetoothd(CoreUtils) : LPM entry took 1578ms Sep 30 22:02:59 bluetoothd : BT_FW_OK flag is set. Sep 30 22:02:59 SpringBoard(CoreUtils) : Invalidated
Sep 30 22:02:59 SpringBoard(FrontBoard) : Shutdown tasks complete. Sep 30 22:02:59 SpringBoard(FrontBoard) : Shutdown task "NotifyBluetooth" complete after 1.59s
Sep 30 22:02:59 backboardd : brightness change:0.67814 reason:BrightnessSystemDidChange options: Sep 30 22:02:59 backboardd(libEDR) : ScheduleSetBrightnessIn_block_invoke: enter WaitUntil late 0.126834 millisecond (333 / 333) Sep 30 22:02:59 bluetoothd : BlueTool finished running "hci cmd 0xFE62 0x04" command - output was "0x0e 0x05 0x01 0圆2 0xfe 0x00 0x04" Sep 30 22:02:59 bluetoothd : BlueTool finished running "hci cmd 0xFE62 0x07 0x00 0x01" command - output was "0x0e 0x05. Sep 30 22:02:59 bluetoothd : BlueTool finished running "hci cmd 0xFE62 0x06. Sep 30 22:02:59 BlueTool : Completed handling of dictionary-xpc event Sep 30 22:02:58 bluetoothd : BlueTool finished running "hci cmd 0xFE62 0x06.
Sep 30 22:02:58 bluetoothd : BlueTool finished running "hci reset" command - output was "0x0e 0x04 0x01 0x03 0x0c 0x00" Sep 30 22:02:58 BlueTool : Completed handling of dictionary-xpc event After installing a Bluetooth debug profile to an iPhone 12 on iOS 15.1b2, the idevicesyslog output looks as follows just before shutdown:
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