Use predefined expressions to identify sensitive data.
Data loss prevention comes with a set of predefined expressions. These expressions
               cannot be
               modified or deleted.
Data loss prevention verifies these expressions using pattern matching and mathematical
               equations. After data loss prevention matches potentially sensitive data with an expression,
               the
               data may also undergo additional verification checks. 
For a complete list of predefined expressions, see the Data Protection Lists
               document at:
 
		