Of course, this is impossible, because there are two people after all, but there is only one mobile phone, so it is impossible. Switching Alipay account name or WeChat account can display the health codes of different users.
To check whether the L3 identity real-name authentication information is my own, you can check it through the information in "My"-Personal User Profile-Identity Information. In order to ensure personal privacy, some data are desensitized, but we can check whether the information in the name and ID number is consistent with the actual situation. If the information does not match, it is recommended to cancel and re-register the account after real-name authentication.