We already try to avoid storing credit cards using the Luhn Algorithm. We can also use the autocomplete attribute value to do the same.
It may be worse: at https://esuite.ci.reynoldsburg.oh.us/eSuite.Utilities/Default.aspx?ReturnUrl=%2FeSuite.Utilities%2FPayment%2F Autocomplete showed both the credit card number and >the CCV<. [For obvious reasons, I don't want to include a screenshot.]
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