Rising reports of American customs and border protection tests and detainments have expressed their concern among travelers about what could happen if they are stopped when they try to enter the country.
CBP has long had the authority to search the content of electronic devices to verify someone's identity or to assess whether they are a risk for national security. However, some immigration lawyers say that such searches become more frequent under the Trump administration, and now social media profiles or are pronounced on a political issue, also become a higher investigation.
The rights of travelers to just searches are weakened within 100 miles after a port of entry, so each person is subjected to interrogation and electronic devices – including telephones, tablets and laptops – are sought by border days, regardless of immigration status.
However, travelers can still take steps to better protect their digital privacy at the borders, including the elimination of biometrics to unlock their phones. This is what to know.
Some guaranteed searches are legal: What to do if you are stopped by border control

An American customs and border protection officer who controls the passport of someone in Miami.
Do I have to give my password to border days?
Technically, there is no, but what happens subsequently depends on your immigration status.
American citizens and legal permanent inhabitants cannot be denied access to the country if they refuse to hand over or unlock their devices with their passwords, according to the American Civilies Union Know Your Rights: American airports and ports of entry. However, CBP can seize your phone and even keep it for weeks or months. (In this case make sure that you write down the name and badge number of the officer and ask for a receipt.)
However, non-citizen visa holders and tourists can be refused if they do not give their passwords.
If you decide to unlock your phone with your password, enter it instead of giving it to the agent. “They can still demand that you share it, but it is a precautionary measure that is worth trying,” said the ACLU website.
Can CBP use biometrics to unlock my phone?
It can happen because the biometrics is less safe, but it is legally cloudy. Although the Electronic Frontier Foundation (EFF) is of the opinion that Face ID or fingerprints to lock devices must be protected under the fifth amendment, which protects against self-accusation, some courts have ruled differently. There have also been cases where law enforcement has forced the fingers of people on their phone to unlock them, so it can also happen at borders, the EFF -States on its website. An agent can easily keep your phone up and easily unlock it.
The most important collection meals is that biometrics is not as protected as a long password or coding, so they are not the best idea if you are cross -border.
How to switch off the biometrics on your phone
On an Android:
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Navigate to the security or privacy sections, depending on the manufacturer
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Search for the biometric authentication and switch off
On an iPhone:
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Search for Face ID & Passcode or Touch ID & Passcode
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Switch off the iPhone discharge to switch off the function. This sets your phone to need the access code to unlock.
This article originally appeared on USA Today: Can Border Control Use Face ID to unlock my phone? What to know