China Industrial and Commercial Bank withdrawal password setting rules are as follows:

1 When opening an account with a savings card, the cardholder can reserve a password at the counter. If opening an account on behalf of the cardholder, the cardholder must go to the counter to open the card and set the password.

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

Extended data:

Reasons for using 6-digit bank card password:

1, the password is six digits, which can be converted into 900,000 passwords, which can meet the needs of our huge population base for passwords.

2. Six-digit passwords are difficult to break, and the safety factor is relatively high. If there are four digits, the password arrangement types will be less, and the security will be lowered. However, eight digits, although improving security, increase the difficulty of memory, and the loss rate of passwords will increase.

3. There is a rule, that is, the "7 2 rule", which is an important paper published in Psychological Review by American cognitive psychologist George A. Miyu 1956. The paper points out that.

Young people's memory span is about seven words (Arabic numerals, letters, words or other units, called chunks), that is to say, if it reaches seven or more, it is difficult for most people to remember it for a short time, so in terms of memory, six digits is the most suitable for short-term memory.

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