1. Personal identification code. PIN is the English abbreviation of Personalidentification number. The Chinese meaning is personal identification number, often called PIN code.

2. Securities trading PIN code refers to the personal password set to ensure transaction security when conducting online transactions in securities markets such as Shenzhen Stock Exchange and Shanghai Stock Exchange, such as stocks, funds, and bonds. The password consists of numbers or letters, and trading operations such as buying and selling can be completed by entering the correct password.

3. The pin code is the personal identification password for using the SIM card. That is the password you need to enter to use the SIM card. The pin code is a quick login password for the Windows system that is independent of the Windows account password in order to facilitate local login for users. The pin code of the router is the identification code of the QSS quick connection function. The car PIN is the password for the car.

4. PIN code (PIN1), the full name is PersonalIdentificationNumber. It is the personal identification password of the SIM card. Currently, passwords are encrypted using md5 or other methods, but there is a risk of being cracked. The emergence of pin codes can further improve security. It is the personal identification code of the mobile phone card.

5. PIN code is a digital password used for personal identity authentication. It is usually used to verify operations such as logging in to a computer or payment platform.

6. PIN code meaning: PIN code is the personal identification password of the SIM card, which is used to protect the SIM card and prevent the SIM card from being used illegally. If the PIN code is enabled, you need to enter the password every time you turn on the phone.