Disinformation and Subversion: Tracing a Definition from National Security Threat to Silly Little Lies

The definition of disinformation has evolved over the last several decades, shifting from its Cold War origins as a tool of national security subversion to a broader concept encompassing misinformation, propaganda, and fake news. This article traces the transformation of disinformation, analyzing its historical and contemporary interpretations while highlighting its strategic role in shaping public perception and political discourse. By situating disinformation within frameworks of psychological warfare, information warfare, and cognitive manipulation, this study examines its deployment in social media environments and geopolitical conflicts. The article further explores mechanisms of narrative control, including the techniques of dazzle, fog of war, and availability heuristics, illustrating how disinformation disrupts critical thinking and decisionmaking processes. Ultimately, this work argues that understanding disinformation in its full historical and operational context is essential for developing effective countermeasures, including media and information literacy.