Bank cards are commonly used for payment in electronic commerce and in physical transaction. Customer normally...

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Bank cards are commonly used for payment in electronic commerce and in physical transaction. Customer normally requested to key the card number as well as the expiry date and/or security code before processing is performed on the internet. In physical transaction, a signature is required for processing. On the internet, when customer use their card for payment they may used the mechanism called "Verified by Visa". Only the holder of credit card can use it. User of "Verified by Visa" need to register this function with Visa. They are given a password for their transaction with the merchant. Users are asked to present their passwors before the transaction is completed. Required 1. What is the purpose of asking additional information like expiry date and/or security code when customer use bank card for payment? 2. Do you think it is safe to reveal such information on the internet? Bank cards are commonly used for payment in electronic commerce and in physical transaction. Customer normally requested to key the card number as well as the expiry date and/or security code before processing is performed on the internet. In physical transaction, a signature is required for processing. On the internet, when customer use their card for payment they may used the mechanism called "Verified by Visa". Only the holder of credit card can use it. User of "Verified by Visa" need to register this function with Visa. They are given a password for their transaction with the merchant. Users are asked to present their passwors before the transaction is completed. Required 1. What is the purpose of asking additional information like expiry date and/or security code when customer use bank card for payment? 2. Do you think it is safe to reveal such information on the internet?

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