Reverse Engineering iOS 18 Inactivity Reboot

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.

> I would say if you’re the type of person who would do this, you should go one step further and power off.

I'd travel with a different device, honestly. I can get a new-in-box android device for under £60 from a shop, travel with that, set it up properly on the other side, and then either leave it behind or wipe it again.

The £60 burner sounds like a leader on the device security front. No way it could possibly be running an ancient version of android that is no longer getting security patches, or is hacked up to shit by the device manufacture to reskin it and install their vulnerable suite of bloatware, or built off of a base os and firmware flocked to by folks for its ease of being able to gain root access/root it and run whatever you want at the kernel level.

There’s no guarantee your $1000 flagship isn’t doing that either.

I chose it because it’s a mainstream provider (Nokia) readily available running a supported version of android (12).

If you want to install a custom rom, you can get an older flagship (galaxy s9) and flash it for about the same price.

My point is if your threat model is devices seized at border, then a burner phone is far more suitable for you than a reboot.

levels of trust. I have more trust in the largest most heavily scrutinized device manufacture making an attempt at security than I do with a rando burner device reseller. To be clear, I don't trust either fully, but one has way less trust than the other