We all keep a lot of personal information on our phones and obviously dont want to share our correspondence, cryptocurrency wallets, or contacts to become a part of the public domain. Nonetheless, in some cases, authorities can ask you to provide full access to your device.
Is this even legal? Can you refuse to give your phone to law enforcement? How can you protect your cryptocurrency wallet?
https://forklog.media/how-to-protect-your-crypto-wallet-during-phone-search/I have to travel frequently but have never seen that customs are checking someone's mobile phone or laptop and etc, that doesn't happen without very valid reason (for example when high authority criminal is wanted and there is doubt on someone). Customs can't crack your bitcoin wallet keys and etc but I think any password set on laptop/smartphone is useless against them but of course you have to use it as an insurance of your data from accidental lost of your digital device.
For offline wallet, use Trezor and if you use online wallets, then just don't remember password on any website, especially on email, be always log off from your email/wallet accounts and this way you'll feel more secure I guess.