Sometimes, for specific types of sensitive data, it's not possible to specify a Regex to find repeatable patterns. For example, when trying to look for addresses or surnames contained in DB data, a Regex is not suitable.
For these type of use cases, Guardium has the option to use the "Compare to values in Group" feature of classification policy data rules, so data in the DB can be compared against a list of possible common values.
However, even when this "Compare to values in group" feature leverages Groups similar to Groups used in other Guardium components (such as monitoring policies rules), in classification policies rules Groups don't accept the use of wildcards ("%") to find out if Group members are contained within the DB value. Guardium is only capable of finding exact matches.
This is very limiting for these type of use cases, as it potentially excludes from the analysis other values that should also be flagged by Guardium as positives.
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