Conspiracy Theories Shake Security

A document summarizing the phenomenon in which conspiracy theories erode social trust and national security, their spread structure, representative cases, and countermeasures.

Conspiracy Theories Shake Security

Overview

Conspiracy Theory (음모론) is a narrative that claims a conspiracy for which evidence is actually scarce as fact, and believes that power, secret organizations, or groups covertly manipulate events. In the past it was treated as a marginal phenomenon, but with the spread of social media, algorithmic recommendation, and generative AI, its popular influence has grown rapidly. Especially during pandemics, elections, wars, and disasters, conspiracy theories have amplified social distrust and emerged as a factor shaking decision-making in national security areas such as military, intelligence, and public health. This document covers how conspiracy theories threaten security, their structure and cases, and recent trends and responses.

Key Content

Definition and Spread Structure of Conspiracy Theories

Conspiracy theories are distinguished from simple misinformation. If misinformation is an error regarding facts, conspiracy theories have a political character in that they make 'secret intent' a core premise. Academia usually cites the following three conditions. First, an irrefutable structure (even if counterevidence appears, it is interpreted as part of a larger conspiracy); second, fundamental distrust of authority; third, emotional solidarity combined with group identity. The digital environment amplifies this structure. Participatory communities, short-form videos, messenger recirculation, and now plausible 'evidence' created by generative AI combine to sharply raise the cost of verification.

Conspiracy Theories as a Security Threat

There are largely four pathways by which conspiracy theories shake security.

1. Erosion of trust capital — Making public institutions such as elections, the judiciary, public health, and the military untrustworthy weakens the very legitimacy of crisis response.

2. Policy distortion and delay — In vaccines, quarantine, and disaster response, evidence-based policies have repeatedly retreated under public opinion pressure.

3. Social polarization and violence — Online narratives transfer to offline action, increasing threats against public facilities and politicians.

4. Entry point for hostile actors — Conspiracy theories are used as a medium for information operations (influence operations) by foreign intelligence agencies or non-state actors seeking to induce social fissures.

Representative Cases

Election fraud claims: In several countries, narratives of vote rigging and machine manipulation spread, undermining trust in election results and leading to physical incidents such as intrusions into legislative buildings.
Health conspiracy theories: Narratives about vaccination and quarantine policies spread, causing vaccination rate gaps, conflicts in medical settings, and delays in policy implementation.
War and conflict situations: In sensitive matters such as civilian casualties, hostages, and chemical weapons, narrative competition over truth shook international public opinion and alliance cohesion.
Disasters and calamities: Claims attributing the causes of wildfires, floods, and earthquakes to specific forces' weapons or plans hindered relief activities and trust recovery.

Psychological and Social Factors

The spread of conspiracy theories is not explained by individual cognitive biases alone. When loss of control, economic anxiety, desire for belonging, and wounds from existing authority combine, the narrative becomes a powerful identity resource. On top of this, platforms' engagement-inducing algorithms prioritize anger and fear content, and closed messengers handle recirculation without verification, forming an ecosystem of 'conviction without confirmation.'

Countermeasures

Fact-checking and prebunking: Research has accumulated that an approach of preemptively informing people of vulnerabilities before false narratives take hold is more effective than post-hoc rebuttal.
Platform transparency: Discussions continue on mandating disclosure and auditing of recommendation algorithms, advertising, and account networks.
Media literacy education: Training in source checking, reverse image search, and identifying generative AI outputs is being incorporated into school and workplace education.
National-level response system: The trend is expanding for consultative bodies in which intelligence agencies, health authorities, and election management commissions jointly detect and disclose influence operations.
Crisis communication: Many point out that transparent information disclosure and acknowledgment of errors are essential for restoring trust in government and experts.

Recent Trends

The changes of 2024–2025 can be summarized in three points. First, with the popularization of generative AI, deepfake voices and videos are used as 'evidence' for conspiracy theories, causing the cost of discerning authenticity to explode. Second, regulation is being fully launched. Along with the European Union's Digital Services Act (DSA), the trend is clear for countries to impose obligations on platforms to respond to disinformation and illegal content, and at the same time conflict with freedom of expression has emerged as a political issue. Third, securing a place on the security agenda. Beyond election interference, health security, and disaster response, information operations responses are beginning to be explicitly included in national security strategy documents in military and diplomatic areas as well. Meanwhile, research is increasing that views conspiracy theories as a 'symptom of a trust crisis' and emphasizes fundamental prescriptions to restore institutional trust.