Data Security uses 
data masking to mask the data in the snippets. Data masking
                enables you to control how 
Data Security stores and displays sensitive data,
                such as credit card numbers or Social Security numbers, to the administrator and
                other nonprivileged users who can view the snippet of content matched as an
                incident. 
 By default, 
Data Security displays the last four digits of the value in cleartext
                    (
partial masking). For example, 
Data Security displays a
                snippet of credit card number as 
XXXX-XXXX-XXXX-1234.
                You can specify that 
Data Security display values in cleartext (no masking) or
                fully mask the data to hide all the values.
    
    Because
the Data Masking setting applies to all cloud apps on Data Security, you must be an administrator with a Super Admin role or Admin
role with access to all apps to modify this setting.