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.

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.

you can be forced to place your thumb on a sensor, or have the device held to your face.

you can't be forced to remember a password you "forgot"...

biometric authentication is not always your friend

> you can't be forced to remember a password you "forgot"...

No, but the border agents also aren't required to let you into the country. (Generally unless you are a citizen.)

So border agents are very different than general laws of the country because while there may be legal protections about what they may be able to force you to do there are much less protections about when you have the right to pass the border (other than entering countries where you are a citizen).