Special mask formats are masks that you can apply to common types of data. With a special mask format, the Data Masking transformation returns a masked value that has a realistic format, but is not a valid value.
For example, when you mask an SSN, the Data Masking transformation returns an SSN that is the correct format but is not valid. You can configure repeatable masking for Social Security numbers.
Configure special masks for the following types of data:
Social Security numbers
Credit card numbers
Phone numbers
URL addesses
Email addresses
IP Addresses
Social Insurance Numbers
When the source data format or datatype is invalid for a mask,the Data Integration Service applies a default mask to the data. The Integration Service applies masked values from the default value file. You can edit the default value file to change the default values.