The ACLU has authoritative advice [1]. The article about electronic device searches [2] explains that the government claims the right to search devices without

The ACLU has authoritative advice [1]. The article about electronic device searches [2] explains that the government claims the right to search devices without a warrant at the border. > U.S. citizens cannot be denied entry to the United States for refusing to provide passwords or unlocking devices. Refusal to do so might lead to delay, additional questioning, and/or officers seizing your device for further inspection. [...] If an officer searches and/or confiscates your laptop or cell phone, get a receipt for your property. [1]: https://www.aclu.org/know-your-rights/what-do-when-encountering-law-enforcement-airports-and-other-ports-entry-us#do-i-have-to-provide-my-laptop-passwords-or-unlock-my-mobile-phone-for-law-enforcement-officers-at-the-border https://www.aclu.org/know-your-rights/what-do-when-encounter... [2]: https://www.aclu.org/news/privacy-technology/can-border-agents-search-your-electronic https://www.aclu.org/news/privacy-technology/can-border-agen...