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  2. Authorization hold - Wikipedia

    en.wikipedia.org/wiki/Authorization_hold

    Authorization hold. Authorization hold (also card authorization, preauthorization, or preauth) is a service offered by credit and debit card providers whereby the provider puts a hold of the amount approved by the cardholder, reducing the balance of available funds until the merchant clears the transaction (also called settlement ), after the ...

  3. Personal identification number - Wikipedia

    en.wikipedia.org/wiki/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 in computer networks for ...

  4. National Financial Switch - Wikipedia

    en.wikipedia.org/wiki/National_Financial_Switch

    8 WLAOs. ATMs. 237000. Founded. 27 August 2004. Owner. NPCI. National Financial Switch (NFS) is the largest network of shared automated teller machines (ATMs) in India. [1] It was designed, developed and deployed by the Institute for Development and Research in Banking Technology (IDRBT) in 2004, with the goal of inter-connecting the ATMs in ...

  5. Use Face, Fingerprint or PIN to sign in to AOL - AOL Help

    help.aol.com/articles/use-face-fingerprint-or...

    Use Face, Fingerprint or PIN to sign in to AOL. Entering a password to sign in to your AOL account can sometimes feel like a hassle, especially if you forget it. If your smart device is enabled with biometric authenticators like a fingerprint sensor or facial recognition technology, you can sign in with ease.

  6. PIN pad - Wikipedia

    en.wikipedia.org/wiki/PIN_pad

    A PIN pad or PIN entry device is an electronic device used in a debit, credit or smart card -based transaction to accept and encrypt the cardholder's personal identification number (PIN). PIN pads are normally used with payment terminals, automated teller machines or integrated point of sale devices in which an electronic cash register is ...

  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. Mobile banking - Wikipedia

    en.wikipedia.org/wiki/Mobile_banking

    Mobile banking is a service provided by a bank or other financial institution that allows its customers to conduct financial transactions remotely using a mobile device such as a smartphone or tablet. Unlike the related internet banking it uses software, usually called an app, provided by the financial institution for the purpose.

  9. Unified Payments Interface - Wikipedia

    en.wikipedia.org/wiki/Unified_Payments_Interface

    Unified Payments Interface (UPI) Unified Payments Interface, commonly referred to as UPI, is an Indian instant payment system as well as protocol developed by the National Payments Corporation of India (NPCI) in 2016. The interface facilitates inter-bank peer-to-peer (P2P) and person-to-merchant (P2M) transactions.