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2. One-time password - Wikipedia

   en.wikipedia.org/wiki/One-time_password

   MasterCard SecureCode uses OTAC to confirm a user's identity One time authorization code as used in Yammer's desktop client. A one-time password (OTP), also known as a one-time PIN, one-time passcode, 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.

3. Transaction authentication number - Wikipedia

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

   A ChipTAN generator is not tied to a particular account; instead, the user must insert their bank card during use. The TAN generated is specific to the bank card as well as to the current transaction details. There are two variants: In the older variant, the transaction details (at least amount and account number) must be entered manually.

4. Comparison of OTP applications - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_OTP_applications

   The following is a general comparison of OTP applications that are used to generate one-time passwords for two-factor authentication (2FA) systems using the time-based one-time password (TOTP) or the HMAC-based one-time password (HOTP) algorithms.

5. Payment terminal - Wikipedia

   en.wikipedia.org/wiki/Payment_terminal

   PAX Technology S90 credit card terminal with a Visa card inserted.. A payment terminal, also known as a point of sale (POS) terminal, credit card machine, card reader, PIN pad, EFTPOS terminal (or by the older term as PDQ terminal which stands for "Process Data Quickly" [1]), is a device which interfaces with payment cards to make electronic funds transfers.

6. What do the numbers on your credit card mean? - AOL

   www.aol.com/finance/numbers-credit-card-mean...

   Your credit card’s 15 or 16-digit number helps authenticate transactions. ... Subscriptions; Animals. Business. Fitness. Food. Games. ... Sports. Weather. 24/7 Help. For premium support please ...

7. Help:Two-factor authentication - Wikipedia

   en.wikipedia.org/wiki/Help:Two-factor_authentication

   Copy the "Two-factor authentication secret key" from "Step 2" of the setup page and paste it into the "otp" field in KeeWeb. Press ↵ Enter on your keyboard. Go back to the 2FA enrollment page. Write down the scratch codes from "Step 3" and keep them in a secure location. In KeeWeb, click on "otp" to copy the 6-digit verification code.