In Spirion (Identity Finder), it is possible to find custom information using regular expressions. Spirion uses the Perl Regular Expression Syntax provided by the Boost libraries.
This article is not a tutorial for regular expressions, but a guide to how to use them in Spirion.
For a brief overview of regular expressions see the page Perl Expression Syntax.
NOTE: The screenshots were taken with Identity Finder. The modern Spirion interface differs in appearance, but the steps required to search with regular expressions has not changed.
CAUTION: Making regular expressions too simple will result in a large number of false positive results. The expression in the example above would recognize 9-digit zip codes, and many other numbers is the same format. It is best practice to test your expression by scanning a small folder that includes multiple data types to be sure the expression is working as you intend before scanning the entire device.Searching for Custom Data - Mac Client