If you're paranoid enough to be using GrapheneOS, why would you take it to an airport in the US of all places?
I bought a second hand iPhone for overseas trips, which my daughter promptly stole because she wanted an iPhone, but then i got her old android phone, which was LineageOS-compatible, so that became my travel phone.
I _think_ you would need a fresh iCloud account (thus losing access to purchased apps and subscriptions). You also need to manually create fresh social media accounts, copy over contacts, etc.?
Any advice on how to automate this process or is this just a 2-4 hours exercise you do before your trip?
I don't have a lot of "everything else" anyway, so my device would probably look suspiciously 'clean' even if it was my in-this-moment daily driver. (HN is my news and social media). I don't use banking apps, but the irony is that I would need to whilst overseas.
One of the funny things is, I should be able to re-setup any device with an old gmail account at any time in any place, but with all the extra security these days, you need an old device to authorise the setup of a new device. I'm going away early next year, so I'll need to have a dry-run of the setup...
Definitely dry-run. I didn't do that and it was a huge pain to recover everything.
It would be easier for me to just go Android, and I do have spare older devices now too.
And if you use iCloud or any of that stuff - you've already lost; Apple, and the US government already have access to your files and communications before you ever came to the airport. Sure, maybe it's not the specific border guards who have the access, but still.
Another plus is if you do lose the device the damage is minimal, its a bit of a hassle but nothing beats peace of mind
- presumably border patrol wants to see his photos, social accounts, and email. A separate device with a copy of the information they want isn't a defense. Creating fresh travel-only accounts is tedious, b/c fresh accounts aren't connected to your friends or network (with whom you'd want to share your trip with).
laziness isn't an excuse and if you do want access to your phone or device at home you could setup that as well