The ICBC withdrawal password consists of 6 digits.

The rules for setting passwords for withdrawals from Industrial and Commercial Bank of China are as follows:

1. When opening a debit card account, the cardholder can reserve a password at the counter. If the account is opened on behalf of the cardholder, the cardholder must Go to the counter to apply for card activation and set a password.

2. The credit card needs to set a password when the card is activated.

Extended information:

The reasons why bank card passwords use six digits:

1. The password is six digits and can be converted into 900,000 passwords. In line with the password needs of our huge population base.

2. The six-digit password is difficult to break and has a relatively high security factor. If there are four digits, there will be fewer types of password arrangements, and security will be lowered. However, although eight digits improve security, they also increase the difficulty of remembering, and the password loss rate will increase.

3. There is a rule, the "7±2 Rule". It is an important paper published by American cognitive psychologist George A. Rice in "Psychological Review" in 1956. , the paper states.

The memory span of young people is about 7 units (Arabic numerals, letters, words or other units, called chunks). That is to say, if it reaches 7 or more, most people will be very good at it. It is difficult to remember it in short-term memory, so in terms of memory, 6-digit is the most suitable for short-term memory.

Intelligent Customer Service of Industrial and Commercial Bank of China - Bank Card Password Setting Rules

Jiaodong Online-Xiao Cai Qian Dao Issue 4: Why is the bank card password 6 digits?

China Economic Net-Why is the bank card password six digits?