The article discusses an undocumented feature in Dataverse that allows users to mask certain values based on a regular expression (RegEx). This feature can be useful for hiding sensitive information like email addresses or social security numbers. To enable this feature, users need to create a new string attribute and set the "Enable column security" option. Then, they can create a secured masking rule and an attribute masking rule in the Solution page. The article provides an example of creating an attribute masking rule using a RegEx to hide part of an email address. The feature is not well-documented yet, but there are some articles available for reference.
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