Business ethics are one of the most important aspects of having a successful business environment. For example, Jerry Saltman and Grant McCracken at Harvard, John Sherry at Northwestern, Eric Arnould at the University of Nebraska/Lincoln, Barbara Olsen at State University of New York-Old Westbury, Janeen Costa at the University of Utah, and Annamma Joy at Concordia are examples of anthropologists who have impacted the business education community.
The Business Analyst should be insuring that all identified changes to requirements get the appropriate management and customer approval and are then documented clearly (be sure to include the date the change was made and the reason.) Failing to manage requirements throughout the project will likely lead to confusion and frustration with both the development team and the customer.
Generally business communication is a formal means of communication in which some important features are included, such as how to interview, make presentations, deliver a ceremonial speech, hold meetings, participate in group discussions or explain a policy analysis.
This question is essentially an open answer as it depends on the person who has been allocated the responsibility to make the decisions on behalf of the organisation to not only be socially responsible at standards set by government and beyond or to fulfil the contract they signed with the business owner or shareholders stating the job description they have devised for the position.
But sharing business details with an unknown person is not an easy task for any business operators and therefore it is necessary to get assured that information shared with consultant will stay restricted only with him and not affected by any kind of elusion.