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Navigation: Appendix B - Effective Keyword Searches >
Searching for credit card numbers
To search for credit card numbers using the creditcard operator, and any numerical sequence that credit-card issuers use to determine card validity, regardless of spacing and punctuation, is recognized. For example, the following sequences will all return text following the number specified:
creditcard(1234 5678 1234 5678)
Occasionally, other numbers may also be returned by this operator.