black propaganda

False, erroneous or misleading message, whose source is concealed or unknown. Black propaganda’s target is to debilitate the enemy. Its source can be an institution, organization, group, or an individual. This method was often used during World War II.

Cunningham, Stanley B. (2002). The Idea of Propaganda: A Reconstruction. Praeger Publishers. Westport. 67. p.
Culbert David, Cull, Nicholas J. & Welch, David (2003). Propaganda and mass persuasion: a historical encyclopedia, 1500 to the present. ABC-CLIO. California. 41 –33. p.