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DLP - Credit Cards Testing

For additional questions, please see the DLP FAQ.

Situation
  • Testing credit card numbers for DLP is not working.
  • Data loss prevention (DLP) is not triggering against credit cards.
  • You want credit card test numbers to use for testing.
Solution Testing credit card numbers for DLP may not be working properly


How Credit Cards Are Viewed With DLP

Credit Card False Negatives

Credit card DLP false negatives come primarily in the form of non-valid formatting. You cannot simply use any 15/16-digit string. .

  • 15/16-digit string can be detected
  • 16 digit strings using the format of ####-####-####-####
    • Dashes must be used, and in the correct location
    • 4-4-4-4 format
  • 15 digit strings using the format of ####-######-#####
    • Dashes must be used, and in the correct location
    • 3-6-5 format

Formatting

Generally accepted that dashes are the norm for credit cards. Any other type of separator, even a space, is not recognized

Test Credit Card Numbers

If you wish to test against some credit cards, here are a few vendors and test card numbers:

Credit Card Vendor Credit Card Number
American Express 371449635398431
Diners Club 30569309025904
MasterCard 5555555555554444
Visa 4111111111111111

 


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  1. Carlos Rios

  2. Posted
  3. Updated

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