This feature can only be modified in Enterprise Edition.
If enabled, the Only Match Unformatted SSNs When Location Contains at Least this Many Unformatted SSNs setting will require Identity Finder to locate the specified minimum number of unformatted SSNs. Often times, locations will contain unformatted SSNs in the form of a list. This settings is valuable for eliminating locations that contain only a single (or other specified number) of unformatted nine digit number(s) that might not represent a list of SSNs. This setting is set to 3 by default and therefore requires that at least 3 unformatted SSNs be found in a location before considering them to be valid.
To view or change these settings, click the Settings button on the Tools and Options ribbon.