A method and a system include receiving a request to process a transaction, identifying, by the messaging application, transactional data based on the request, the transactional data corresponding to a user profile associated with the client device in an entity graph, determining a first desensitized data item associated with the user profile being included in the transactional data, providing for display a first user interface of the messaging application including a first user-selectable element corresponding to a completion of the transaction, receiving an indication of user selection of the first user-selectable element, and transmitting the transactional data to a secured processor.