Apple's mobile phone has a password that can be opened as long as someone sends a message.

Apple's mobile phone has a password, and once the message is sent, others will not be able to open the password.

Apple phones can protect users' privacy by setting passwords to ensure that others cannot access the information inside the phone without authorization. After setting the password, even if someone receives the message, if the password is entered incorrectly, they can't open the phone to view the message. This is one of the security mechanisms of Apple's mobile phone, aiming at protecting users' personal privacy and data security.