The service password is the identification password of China Unicom, China Mobile and China Telecom customers, which consists of 6 digits (0 ~ 9). Only used for business inquiry and some business acceptance. In addition to the service password, a valid certificate is required to handle the business acceptance project involving the nature of transaction.
Service password is the identification password of telecom customers, which consists of a set of 6 digits (each digit can be any number from 0 to 9). When using this number for the first time, mobile phone users should remember to set the service password in person. If they have a service password, they should modify it immediately, and modify the service password 1 time at least within one month after purchasing a set of cards or newly accessing the network to ensure the confidentiality of the password. Also remember not to set an overly simple service password. The act of passing the service password authentication is regarded as the act authorized by the customer himself.
Operators have strict anti-theft measures for service passwords, and users have SMS notifications when logging in to online business halls and handling business at physical outlets.
Simple password definition
A "weak password" refers to a password that is regular and easy to guess. Take 6-digit password as an example, weak passwords include: 6-digit password unchanged, 6-digit password decreasing, 6-digit password increasing, etc. For example, a password consists of a number (such as 888888 or 666666) or a group of numbers arranged in sequence or in reverse order (such as 0 12345 or 987654).
Simple cipher block
(1) A certain number (for example: 888888 or 66666) 0000,111,22222, 3333, etc.
(2) A group of numbers are arranged in sequence or in reverse order (such as 0 12345 or 987654), 0 12345, 123456, 234567, 345678, 456789, 567890543265
(3) 6 consecutive digits in the customer's mobile phone number;
(4) Six consecutive digits of the customer's registered identity document.