Why is there a short message prompt for OPPO cloud service positioning?

Searching for emergency contacts of mobile phones needs to bind relevant short messages for additional identity verification when logging in to "find mobile phones" to avoid malicious positioning and control of mobile phones after others obtain accounts. The method of binding emergency contacts is as follows:

ColorOS 12 and above: Go to Settings >; Password and security > system security > find mobile phone, open the phone > add emergency contact > enter contact name after phone number verification > enter SMS or email verification code after verification.

Tips:

① Add emergency contacts, which can be used to reset passwords and authentication. If there is any change, please update it in time.

② Emergency contacts can add up to 3 emergency contacts, and cannot be deleted when there are only 1 emergency contacts.