Regular expressions and life hacks to control the prevention and monitoring of the transfer of credit cards of payment systems Visa, Mastercard, Mir in the DLP system.
- RegEx
(?:^|\s)(?:[4|5|6|9]\d{3})([ -]?)\d{4}\1\d{4}\1\d{4}(?:$|\s|\.|\,)
Regular expression for Visa, MasterCard and Prostir.
- RegEx
(?:^|\s)(?:4\d{3})([ -]?)\d{4}\1\d{4}\1\d{4}(?:$|\s|\.|\,)Regular expression for Visa Credit Cards.
(?:^|\s) – start of string (with a new line or space)(?:4\d{3}) – start with digit 4 and random 3 digits([ -]?)\d{4}\1\d{4}\1\d{4} – space or dash every random 4 digits 3 times(?:$|\s|\.|\,) – end of string (line end, space, dot, or comma)
Example:4916 9006 6151 3107 and 4609-3639-2287-9340 and 4369559843305287
- RegEx
(?:^|\s)(?:5\d{3})([ -]?)\d{4}\1\d{4}\1\d{4}(?:$|\s|\.|\,)Regular expression for MasterCard.
(?:^|\s) – start of string (with a new line or space)(?:5\d{3}) – start with digit 5 and random 3 digits([ -]?)\d{4}\1\d{4}\1\d{4} – space or dash every random 4 digits 3 times(?:$|\s|\.|\,) – end of string (line end, space, dot, or comma)
Example:5404 3664 0602 4840 and 5404-3658-7741-3532 and 5404363072774782
- RegEx
(?:^|\s)(?:[6|9]\d{3})([ -]?)\d{4}\1\d{4}\1\d{4}(?:$|\s|\.|\,)Regular expression for Prostir (Ukrainian System).
(?:^|\s) – start of string (with a new line or space)(?:[6|9]\d{3}) – start with digit 6/9 and random 3 digits([ -]?)\d{4}\1\d{4}\1\d{4} – space or dash every random 4 digits 3 times(?:$|\s|\.|\,) – end of string (line end, space, dot, or comma)
Example:6404 3664 0602 4840 and 6404-3658-7741-3532 and 64043630727747829404 3664 0602 4840 and 9404-3658-7741-3532 and 9404363072774782
- RegEx
(?:^|\s)(?:2\d{3})([ -]?)\d{4}\1\d{4}\1\d{4}(?:$|\s|\.|\,)
Regular expression for Mir.
(?:^|\s) – start of string (with a new line or space)(?:2\d{3}) – start with digit 2 and random 3 digits([ -]?)\d{4}\1\d{4}\1\d{4} – space or dash every random 4 digits 3 times(?:$|\s|\.|\,) – end of string (line end, space, dot, or comma)
Example:2404 3664 0602 4840 and 2404-3658-7741-3532 and 2404363072774782