Data Identifier Normalization does not work without Validator

Products

• Data Loss Prevention Network Monitor

Issue/Introduction

The Data Normalizer on a Data Identifier only works if there is a Validator associated with that Data Identifier.

Cause

A data normalizer reconciles the data detected by the data identifier pattern with the format expected by the normalizer. 

Resolution

The Data Identifier Normalizer kicks in after pattern matching and before the Validator is applied.  If the Data Identifier does not have a Validator, the matched content will not be normalized.

If you have a list of keywords including 'Test', the normalizer determines the pattern value

• The normalizer 'lowercase' allow letters only but normalizes the data identifier entries in lowercase version(s), regardless of how it is entered.
  • Therefore it would use 'test' not 'Test' as the pattern.
• If 'Do nothing' normalizer is used, then it will only use 'Test' as its pattern.

If you want to match with mixed case scenarios, like the below list, either requires the use of 'No Validation' , to match the following:

Test
tEST
TesT

In this case, consider the use of a keyword instead of a Data Identifier. Keyword will normalize the data but not apply Validation unless case sensitivity is defined, etc.