Locating credit card data in log files

Credit card grep

find /var/log/application/* -name "*.log" -type f -mtime -1
-exec egrep -Hn \
'\b(?:4[0-9]{12}(?:[0-9]{3})?
|5[1-5][0-9]{14}
|6(?:011|5[0-9][0-9])[0-9]{12}
|3[47][0-9]{13}
|3(?:0[0-5]|[68][0-9])[0-9]{11}
|(?:2131|1800|35\d{3})\d{11})\b'
{} > ~/output.out \;