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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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Shank ◴[18 Nov 24 09:31 UTC] No.42170993[source]▶
To me the biggest takeaway is that Apple is sufficiently paranoid to add this feature. Some people (like John Gruber) advocate for activating bio lockout at the border by squeezing the volume and power buttons. I would say if you’re the type of person who would do this, you should go one step further and power off.

Similarly, if you’re in a situation where you cannot guarantee your phone’s security because it’s leaving your possession, and you’re sufficiently worried, again, power off fully.

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phinnaeus ◴[18 Nov 24 10:48 UTC] No.42171295[source]▶
What do you do if you’re at the border and they demand both the physical device and the password?

Let’s assume “get back on the plane and leave” is not a viable option.

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wepple ◴[18 Nov 24 11:19 UTC] No.42171441[source]▶
That’s a significantly higher bar. It’s not foolproof though.

I believe in most countries, customs can inspect your luggage. They can’t force you to reveal information that they’re not even certain you have.

Under your situation, the best idea is to simply have a wiped device. A Chromebook, for example, allows you to login with whatever credentials you choose, including a near empty profile

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1. bananapub ◴[18 Nov 24 11:31 UTC] No.42171506[source]▶
> I believe in most countries, customs can inspect your luggage. They can’t force you to reveal information that they’re not even certain you have.

this isn't a very useful way to think about it.

they can definitely search your luggage, obviously, but the border guards/immigration officials/random law enforcement people hanging around/etc can also just deny non-citizens entry to a country, usually for any or no reason.

there's documented cases of Australia[0] demanding to search phones of even citizens entering the country, and the US CBP explicitly states they may deny entry for non citizens if you don't give them the password and while they can't deny entry to citizens, they state they may seize the device then do whatever they want to it[1].

0: https://www.theguardian.com/world/2022/jan/18/returning-trav...

1: https://www.cbp.gov/travel/cbp-search-authority/border-searc...