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  2. Personal identification number - Wikipedia

    en.wikipedia.org/wiki/Personal_identification_number

    Personal identification number. A personal identification number ( PIN ), or sometimes redundantly a PIN number or PIN code, is a numeric (sometimes alpha-numeric) passcode used in the process of authenticating a user accessing a system. The PIN has been the key to facilitating the private data exchange between different data-processing centers ...

  3. Personal unblocking key - Wikipedia

    en.wikipedia.org/wiki/Personal_unblocking_key

    A personal unblocking key ( PUK ), sometimes called personal unblocking code ( PUC ), is used in SIM cards to reset a personal identification number (PIN) that has been lost or forgotten. Most mobile phones offer the feature of PIN protection. After switching on the phone, if the PIN security function is active, the user is required to enter a ...

  4. ISO 9564 - Wikipedia

    en.wikipedia.org/wiki/ISO_9564

    ISO 9564. ISO 9564 is an international standard for personal identification number (PIN) management and security in financial services . The PIN is used to verify the identity of a customer (the user of a bank card) within an electronic funds transfer system, and (typically) to authorize the transfer or withdrawal of funds.

  5. What’s a Personal Identification Number (PIN) - AOL

    www.aol.com/finance/personal-identification...

    A PIN essentially unlocks access to a person’s finances, whether that’s a bank or credit card account. That’s why it’s important to protect these four-digit codes . Safeguarding them can ...

  6. Automated teller machine - Wikipedia

    en.wikipedia.org/wiki/Automated_teller_machine

    The product was released as the Identikey. It was a card reader and customer identification system, providing a terminal with plastic card and PIN capabilities. The Identikey system consisted of a card reader console, two customer PIN pads, intelligent controller and built-in electronic interface package.

  7. HDFC Bank - Wikipedia

    en.wikipedia.org/wiki/HDFC_Bank

    HDFC Bank Limited. HDFC Bank Limited (also known as HDFC) is an Indian banking and financial services company headquartered in Mumbai. It is India's largest private sector bank by assets and the world's tenth-largest bank by market capitalization as of May 2024.

  8. Contactless payment - Wikipedia

    en.wikipedia.org/wiki/Contactless_payment

    EMV stands for " Europay, Mastercard, and Visa ", the three companies that created the standard. Contactless payment systems are credit cards and debit cards, key fobs, smart cards, or other devices, including smartphones and other mobile devices, that use radio-frequency identification (RFID) or near-field communication (NFC) for making secure ...

  9. Telephone card - Wikipedia

    en.wikipedia.org/wiki/Telephone_card

    A telephone card, calling card or phone card for short, is a credit card -size plastic or paper card used to pay for telephone services (often international or long-distance calling). It is not necessary to have the physical card except with a stored-value system; knowledge of the access telephone number to dial and the PIN is sufficient.