Perhaps that mode could be called full disk encryption?
All humans inside the US border have the fifth amendment right to remain silent, so handing over encryption passwords to the CBP is a choice.
Unfortunately, the 5th amendment doesn't apply in New Zealand - if you remain silent at a NZ airport while customs ask for your password, they will impose a $5000 fine on you. The only viable solution I see is to only travel to places that do have 5th amendment protection or similar (which would immediately rule out Britain, Ireland, Australia, and now NZ as well).
iOS 12 was a painful upgrade for me but the 4th erasure of the phone seems to have worked.
What this means is that I am now confident that I don’t lose anything when I erase.
So if you have good backups, just erase before the border and walk though with a fresh phone, possibly with some dummy data in there.
If you use this strategy, you may want to make sure that you securely erase your data. Secure erasure is rather difficult on SSD, unlike on HDD where one simply overwrites the bytes.
All humans inside the US border have the fifth amendment right to remain silent, so handing over encryption passwords to the CBP is a choice.
Unfortunately, the 5th amendment doesn't apply in New Zealand - if you remain silent at a NZ airport while customs ask for your password, they will impose a $5000 fine on you. The only viable solution I see is to only travel to places that do have 5th amendment protection or similar (which would immediately rule out Britain, Ireland, Australia, and now NZ as well).