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Q. I would request to provide details on how does CVV verification process work. for example when a user enters his CVV in the payment termina intertface then what verification and validation processes occur in backgroung and the user gets authorized for the transaction. such information would be most appreciated.
[[User:Lavkru|Lavkru]] ([[User talk:Lavkru|talk]]) 09:48, 7 May 2013 (UTC)
I do not quite understand the security model underlying the CVV2. Isn't it the case that credit card numbers are typically obtained by making the user enter them on forged websites or by sniffing network traffic? Now what additional security do I gain if all such transactions will soon require to give the CVV2 as well? The same online methods used for stealing the credit card number can also be used to steal the CVV2.
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:I may tell a secret to you, but mag stripe is still must to be accepted everywhere. Lol. Unless it is next gen where there is no mag stripe and "Signature is not required" is written. Or if you cannot sign your transaction sheet. [[Special:Contributions/2A00:1FA0:4638:232D:D94:FC02:20D6:E94B|2A00:1FA0:4638:232D:D94:FC02:20D6:E94B]] ([[User talk:2A00:1FA0:4638:232D:D94:FC02:20D6:E94B|talk]]) 08:24, 23 August 2020 (UTC)
::Or if the terminal does not support that. And that is most of modern ones, also if there is no human for example like in automatic kiosks... Both card (as you mentioned) and terminal can say they do not support this method, called signature in cardholder verification process. [[Special:Contributions/109.252.90.66|109.252.90.66]] ([[User talk:109.252.90.66|talk]]) 18:30, 25 March 2021 (UTC)
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