I have aDLP default template policy that flags Credit card information. The issue I see here is that it flags random documents that contains SSN numbers and other number format. 

Do we need to use Regex to tell DLP policy to only looks Credit card number instead of flagging SSN (SSN number is 9 digiti format only) and SIN numbers too? 

If yes, can someone share REGEx expression that works for all types of Credit card numbers. My users use something like 4513-2321-5247-6554 or 379857582890004. I see they either have at least 13 digit or 15 or sometimes 16 digit in the above format.

​I have aDLP default template policy that flags Credit card information. The issue I see here is that it flags random documents that contains SSN numbers and other number format.  Do we need to use Regex to tell DLP policy to only looks Credit card number instead of flagging SSN (SSN number is 9 digiti format only) and SIN numbers too? If yes, can someone share REGEx expression that works for all types of Credit card numbers. My users use something like 4513-2321-5247-6554 or 379857582890004. I see they either have at least 13 digit or 15 or sometimes 16 digit in the above format.  Read More

​