There are two reasons for this:
1. Other users entered the wrong account or mobile phone number unintentionally;
2. The user's own account number and password information are leaked, which is more serious.
Extended data
How to deal with SMS "Login to E-Link Mobile Client";
1. First, confirm whether the user operated it himself or accidentally touched it.
If it is confirmed that I did it, you can ignore it.
3. If you don't do it yourself, you need to log in to the e-mobile client immediately and modify the login password. It is best to set a complex password of letters+numbers+special characters, and don't use "1234567" pure numbers or easy-to-crack birthdays.
4. Check whether there is any loss. If so, you need to contact ICBC or the police for handling.