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  2. 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 ...

  3. Unique citizenship number - Wikipedia

    en.wikipedia.org/wiki/Unique_citizenship_number

    2 The products obtained are added 3 The resulting sum modulo 11 is the check digit. If the result is 10, the check digit becomes 0 Examples Calculation. The first female registered born on 2 January 1975 has number 75 (1975) 01 (January + 0) 02 (2nd) 001 (district has numbers, say, 0-50, and this is first female of this date) & check digit, i.e. 750102001 & check digit.

  4. 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 ...

  5. Transaction authentication number - Wikipedia

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

    A transaction authentication number ( TAN) is used by some online banking services as a form of single use one-time passwords (OTPs) to authorize financial transactions. TANs are a second layer of security above and beyond the traditional single-password authentication . TANs provide additional security because they act as a form of two-factor ...

  6. One-time password - Wikipedia

    en.wikipedia.org/wiki/One-time_password

    One-time password. A one-time password ( OTP ), also known as a one-time PIN, one-time authorization code ( OTAC) or dynamic password, is a password that is valid for only one login session or transaction, on a computer system or other digital device. OTPs avoid several shortcomings that are associated with traditional (static) password-based ...

  7. Protect yourself from internet scams - AOL Help

    help.aol.com/articles/protect-yourself-from...

    What are 800 and 888 phone number scams? If you get an email providing you a PIN number and an 800 or 888 number to call, this a scam to try and steal valuable personal info. These emails will often ask you to call AOL at the number provided, provide the PIN number and will ask for account details including your password.

  8. Add or disable 2-step verification for extra security - AOL Help

    help.aol.com/articles/2-step-verification...

    We'll send you a text or call you with a new code that needs to be entered at sign-in. The phone number we contact you with may be different each time. Enable 2-step for phone. 1. Sign in to your Account Security page. 2. Next to "2-Step Verification," click Turn on. 3. Select Phone number for your 2-step verification method. 4.

  9. 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 ...