In their Code of Ethics, the Society of professional journalists declares these four principles as the foundation of ethical journalism and encourages their use in its practice by all people in all media:
One of the ways in which a news source demonstrates its authenticity and responsibility to its readers is through a publicly accessible code of ethics or standards. A sample of various codes, mission statements and ethics handbooks are listed below.
American Society of News Editors: Codes of Ethics A comprehensive list of codes of ethics from 47 different news outlets and professional organizations dedicated to journalism
N. Kshetri and J. Voas, "The Economics of “Fake News”," in IT Professional, vol. 19, no. 6, pp. 8-12, November/December 2017. doi: 10.1109/MITP.2017.4241459. URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8123490&isnumber=8123452