US Patent 11907941 Anonymization of data fields in transactions

In some examples, a system renders, in a user interface, data fields of an interface code, the interface code to input or output the data fields in a transaction, and receives a selection, made in the user interface, of a first data field from among the data fields of the interface code. The system modifies the interface code by adding an indicator associated with the first data field, the indicator specifying anonymization of the first data field during the transaction that uses the first data field, the modifying of the interface code producing a modified interface code.