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Show HN: Forensic evidence of iOS mesh networking bypassing Airplane Mode

https://github.com/JGoyd/NeuralNet
4•TakeFlight007•1h ago
I found evidence of autonomous mesh networking on iOS during Airplane Mode. What am I missing?

Did forensic analysis on my iPhone during Airplane Mode isolation. Kernel stats show 2,657 packets transmitted and 84.5MB processed through mDNSResponder while interfaces report "inactive". Found a parallel utun2 tunnel bound to IDS framework that persists during isolation. Applied Shannon-Hartley theorem to verify the channel capacity supports this volume. Either I'm misunderstanding legitimate system behavior, or this is a covert channel. Reproducible steps and raw evidence included.

https://github.com/JGoyd/NeuralNet

Comments

N_Lens•1h ago
I'm left wondering what this covert mesh traffic is actually accomplishing, and whether it's actually controversial or whether the researcher came across a red herring (Perhaps background file transfer such as airdrop while in airplane mode, unlikely as that sounds?).
TakeFlight007•1h ago
Good catch! checked sharingd (PID 75) in spindump: <0.001s CPU time while mDNSResponder processed the 84MB. Traffic attribution rules out AirDrop. The 67:1 RX/TX asymmetry and idle sharing daemon confirm this isn't file transfer.
taraindara•1h ago
My guess would it has to do with find my iPhone and AirTag tracking features.
Teknomadix•39m ago
LOL. Seems like the OP is confused and misreading normal macOS/iOS behavior as a conspiracy.

Interface stats are cumulative since boot (eg: not real-time), mDNSResponder traffic includes all historical Bonjour activity. utun tunnels are standard iCloud/VPN infrastructure. Shannon-Hartley math proves WiFi can move data, not that anything covert is happening.

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