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A personal identification number (PIN) is a numeric or alpha-numeric code used to authenticate a user accessing a system. Learn about the history, usage, and validation methods of PINs in financial services and other applications.
What Is a Personal Identification Number? A PIN is a short series of numerals that a card or account holder must use to authenticate their identity in a digital transaction. This numeric code ...
A Postal Index Number (PIN) is a six-digit code used by India Post to sort and deliver mail. It consists of two parts: the first four digits indicate the zone, sub-zone, sorting district and service route, and the last two digits indicate the delivery office.
A pin is a device for fastening objects or fabrics together, with various shapes, materials and functions. Learn about the origin, production and classification of pins, from sewing and fashion pins to safety pins and push pins.
A pin tumbler lock is a lock mechanism that uses pins of varying lengths to prevent the lock from opening without the correct key. The shear point is the point where the plug and cylinder meet, and the pins must align exactly at the shear point to open the lock.
A national identification number is a system used by many countries to track their citizens, residents, and temporary residents for various purposes. Learn about the history, formats, and functions of national identification numbers in different regions, such as Africa, South Africa, and Zimbabwe.
An Employer Identification Number (EIN) or Federal Employer Identification Number (FEIN) is a nine-digit number assigned by the IRS to US businesses for tax purposes. Learn about the format, comparison to SSN, and how to apply for or change an EIN.
A VAT identification number (VATIN) is an identifier used in many countries for value-added tax purposes. It starts with a country code and has between 2 and 13 characters, and can be verified online at the EU's VIES website.