Don't carry digital data across any border, even if encrypted. Many countries have totally different standards over search and seizure at their borders to when you have gained entry and sometimes far worse for non citizens.
Turn off your phone before going through customs or tsa. They can’t compel you to give your password out, but biometrics don’t fall under that category.
If you really need to go to the US - Don't bring any electronic devices with you through security or while transitioning through borders.
Leave your devices at home. Bring a single function camera with you if you want.
Once you get across the border ... buy a new or used phone. If you have friends or family waiting for you, ask them to get you a phone, maybe even an old phone or get them to buy a used phone that you can use during your stay (pay them to get it of course).
Set up your new phone - load your data through cloud based systems ... if you are organized enough, you can set up a cloud based password manager to handle all your other data services.
Then when you leave, reformat and reset your phone and either try to sell off the phone you just bought, give it away or just toss it.
FWIW the US is claiming that the researcher had confidential information from Los Alamos National Labs against the terms of his NDA. They claim the researcher admitted to taking the information and attempting to conceal it.
I honestly hope this is the explanation. If we're starting to deny entry to the country simply due to criticisms of domestic policy decisions, we're going down yet another dark path.
My company isn’t organizing any off-sites to the US for my remote first company anymore because of this shit lol. I think partially because nobody outside of the US would even go
I thought that was basic opsec. Burner phone with a week of use, paid in cash on you. Real phone (if you need it) in a bag, battery removed and separate by any means. That's not just crossing borders, that's anything longer than a city bus.
Yup. That's a possibility. I work in security and would tell them it's just how we do things. If they send me home I will spend the week with my family instead of sitting in stupid training all week.