PIN is the abbreviation of personal identification number.
Personal identification number
Pronunciation: English [? ps？ nl adent？ fken？ n？ mb？ (r)]？ Beauty [? prs？ nl adent？ fken？ n？ mb？ r]
Personal identification number; Personal identification number; Personal password; Personal identification number; Identification user code
Personal identification number (English: personal identification number, abbreviated as PIN), also translated as user's personal identification number, is a password composed of a series of numbers, which is used to authenticate the user's identity and authorize him to enter the system. Usually used in ATM cards and credit card systems.
Extended data
In addition to online shopping, mail order shopping and telephone shopping, it is no longer necessary to sign a chip password card to confirm payment, but to use a four-digit personal identification password (PIN) that only customers know.
For customers, although this is an intelligent new system, it is easier to use and avoids card fraud. When you use a chip password card to pay, you will be required to enter 4 digits instead of signing a receipt to verify the payment, whether in a store, supermarket, hotel, restaurant or garage.
In 1966, James Goodfellow issued a personal identification number and an ATM patent. 1967, Barclays Bank deployed the first ATM system in London. Personal identification code (PIN) was first applied to checks to identify users in machine-readable format.
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