What can I check the service password of Unicom's mobile phone number? What will happen if it is leaked?

Under normal circumstances, you can log in to the mobile phone business hall and online business hall through the mobile phone service password, and inquire about the package information, personal basic information, phone bill balance and other information of the mobile phone. However, the detailed list query still needs to obtain the random verification code to query. According to the situation you described, it is suggested that you modify the service password in time, and dial 100 10- press 3 business-press 4 password to modify it.