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Reverse Engineering iOS 18 Inactivity Reboot

(naehrdine.blogspot.com)
511 points moonsword | 1 comments | 17 Nov 24 21:50 UTC | HN request time: 0s | source
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thrdbndndn ◴[18 Nov 24 01:27 UTC] No.42168908[source]▶
Two questions:

1. surely unconditionally rebooting locked iPhones every 3 days would cause issues in certain legit use cases?

2. If I read the article correctly, it reboots to re-enter "Before First Unlock" state for security. Why can't it just go into this state without rebooting?

Bonus question: my Android phone would ask for my passcode (can't unlock with fingerprint or face) if it thinks it might be left unattended (a few hours without moving etc.), just like after rebooting. Is it different from "Before First Unlock" state? (I understand Android's "Before First Unlock" state could be fundamentally different from iPhone's to begin with).

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Kwpolska ◴[18 Nov 24 07:49 UTC] No.42170569[source]▶
What legit use case involves not touching your phone at all for 3 days?
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1. layer8 ◴[18 Nov 24 18:24 UTC] No.42175323[source]▶
It means that in the future you can’t use old iPhone hardware to run an unattended server or similar anymore (unless you simulate user activity by adding some hardware that taps on the display every three minutes, or something). This is why I don’t like that it’s a hardcoded non-configurable setting. It cripples potential use cases for the hardware.