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Reverse Engineering iOS 18 Inactivity Reboot

(naehrdine.blogspot.com)
511 points moonsword | 6 comments | 17 Nov 24 21:50 UTC | HN request time: 0.25s | source | bottom
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jjallen ◴[18 Nov 24 07:55 UTC] No.42170596[source]▶
If this is such a security benefit why not do it after 24 hours instead? How many people go that long without using their phones?

How many people are using their phones for some other purpose for which they want their phones to never reboot? And what are they actually doing with their phones?

replies(2): >>42170657 #>>42175380 #
1. saagarjha ◴[18 Nov 24 08:11 UTC] No.42170657[source]▶
Because it harms the user experience.
replies(2): >>42170699 #>>42171549 #
2. jjallen ◴[18 Nov 24 08:20 UTC] No.42170699[source]▶
How though? Users haven't used their phone in a day or more? How would they notice except for having to reenter their passcode which takes two seconds?
replies(2): >>42170710 #>>42170946 #
3. IshKebab ◴[18 Nov 24 08:22 UTC] No.42170710[source]▶
Read the introduction.
4. Shank ◴[18 Nov 24 09:21 UTC] No.42170946[source]▶
Not being able to glance at any push notifications or get incoming caller ID would be pretty disruptive.
replies(1): >>42175392 #
5. Wowfunhappy ◴[18 Nov 24 11:37 UTC] No.42171549[source]▶
I'm sure this is why but I had the same thought as GP. Under what circumstances would 24 hours be disruptive, but three days would be okay?

If you're using the iPhone as some type of IoT appliance, either time limit would be disruptive. But if you e.g. enable Guided Access, the phone will stay unlocked and so shouldn't reboot.

If you're using the iPhone as a phone, who the heck doesn't touch their phone in 24 hours? Maybe if you're on some phone-free camping trip and you just need the iPhone with you as an emergency backup—but in that case, I don't think Inactivity Reboot would be particularly disruptive.

Maybe Apple will lower the window over time?

6. layer8 ◴[18 Nov 24 18:31 UTC] No.42175392{3}[source]▶
That’s not the case if you also have other Apple devices on the same account.