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

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

    An individual’s PIN is the four-digit code they set after opening a debit account with their bank of choice. It is used as a layer of authentication when they perform an electronic transaction ...

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

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

    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. Enable biometric sign in

  4. Personal identification number - Wikipedia

    en.wikipedia.org/wiki/Personal_identification_number

    A personal identification number (PIN; sometimes redundantly a PIN code or PIN number) 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 financial ...

  5. ISO 9564 - Wikipedia

    en.wikipedia.org/wiki/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.

  6. Personal unblocking key - Wikipedia

    en.wikipedia.org/wiki/Personal_unblocking_key

    If the wrong PIN is entered more than three times, the SIM card will become locked. It can be unlocked by entering the PUK code provided by the mobile service provider, [1] which may be available on the SIM card's packaging, the contract, or provided by customer service after identity verification. After the PUK code is entered, the PIN must be ...

  7. Recover a forgotten username - AOL Help

    help.aol.com/articles/recover-a-forgotten-username

    If you can't sign in because you've forgotten your username, you can use the recovery phone number or the recovery email address linked to your account to recover it. 1. Go to the Sign-in Helper. 2. Enter your recovery phone number or email address that you have access to. 3. Click Continue. 4. Click Yes, send me a verification code.

  8. Find missing Address Book contacts in AOL Desktop Gold

    help.aol.com/articles/find-missing-address-book...

    This means that your contacts automatically go with you to any AOL Desktop client you use. If you're unable to see your contacts, check your connectivity, webmail, or reinstall Desktop Gold. 1. Check connectivity - Check that you're connected to the internet with your broadband connection by trying to access a few websites. If you're able to ...

  9. Transaction authentication number - Wikipedia

    en.wikipedia.org/wiki/Transaction_authentication...

    The bank verifies the TAN submitted against the list of TANs they issued to the user. If it is a match, the transaction is processed. If it is not a match, the transaction is rejected. The TAN has now been used and will not be recognized for any further transactions. If the TAN list is compromised, the user may cancel it by notifying the bank.