A credit card company detects potential errors in credit card numbers by checking whether all entered numbers contain the correct amount of digits. This is an example of which of the following IT controls?
A credit card company detects potential errors in credit card numbers by checking whether all entered numbers contain the correct amount of digits. This is an example of which of the following IT controls?
The described process of ensuring that a credit card number has the correct amount of digits is an example of data integrity tests. Data integrity tests are used to ensure that data is accurate and maintained as expected, including verifying the correct number of digits in a credit card number.
Shouldn't be B?
This control is just counting the number of digits (e.g. 15 digits for VISA/Master means some errors), so it is before the check digit control.