For additional questions, please see the DLP FAQ.
Situation |
|
---|---|
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 |
Carlos Rios
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