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Trying to run a search in my environment to see what logs/events have credit cards in them. Any help? (PCI requirements)

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Need a query to find credit card numbers in events. Please help. I have run queries but they don't seem to be right.

This one is for Master Card, but I need one for OVERALL credit card numbers. this one doesnt even work btw

index=<index> | rex field=_raw "^4[0-9]{12}(?:[0-9]{3})?$(?<credit_card>)" | stats count by credit_card 
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SplunkTrust
SplunkTrust

Hi Jewatson17,

you can use this regex to match all possible credit cards:

| rex "(?<possible_credit_card_number>\d{12,19})"

According to https://en.wikipedia.org/wiki/Payment_card_number#Issuer_identification_number_(IIN) the IIN ranges have a possible length of 12 - 19 digits.

Hope this helps ...

cheers, MuS

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