Determine the term- security, Computer Engineering

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Determine the term- Security

When using Internet, security can be enhanced using encryption. Debit and credit card transactions can also be protected by a specific type of password control. For instance, if a user chooses the password COMPUTE34 to protect their credit card, when they buy something over the internet, card issuer will ask the user an additional question like: "Please type the 2nd, 4th and 7th character of your password in following boxes:

                          ?    ?    ?    "


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