An international traveler is concerned about others accessing the contents of their smartphone if it...

Comprehensive and Detailed Explanation From Exact Extract:

Device encryptionensures that even if someone bypasses biometrics or has physical access to the phone, they cannot read the stored data without the encryption key.

FromQuentin Docter – CompTIA A+ Complete Study Guide:

“Encryption is the most effective way to protect data at rest. Even if the device is lost or stolen, encryption ensures the data remains inaccessible without the correct key or passcode.”