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FIMI Taxonomy v4.1 — Modular taxonomy of foreign information manipulation and interference

Structural Terrain

Environmental and structural factors that shape information manipulation
Author
Affiliation

E. Rosalie Li

Information Epidemiology Lab

Published

February 17, 2026

Structural terrain describes the environmental conditions that shape the vulnerability or resilience of a population to information manipulation. These are not tactics — they are the landscape on which operations take place.

Awareness Levels

Awareness levels determine a population’s capacity to detect and critically assess information manipulation, shaping collective resistance or vulnerability.

Concurrent Events

Concurrent events are leveraged as contextual backdrops or triggers for information manipulation, enabling operators to amplify confusion, exploit public uncertainty, or…

Geography

Geography shapes a state’s susceptibility to information manipulation by determining its exposure to adversarial actors, communication infrastructure accessibility, and the…

Legal

Robust legal frameworks protecting speech and press freedom constrain the effectiveness of information manipulation by limiting the ability of adversaries to suppress or…

Population Features

Population characteristics such as age distribution, ethnic composition, linguistic groups, and social networks are analyzed to identify societal vulnerabilities and tailor…

Reaction

Societal actors implement legal, institutional, or informal measures to expose, counter, or penalize information manipulation, reducing its effectiveness and deterring…

Technology Access

Access to digital communication technologies is restricted, monitored, or selectively enabled to control the flow of information and limit exposure to external content.

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FIMI Taxonomy by Information Epidemiology Lab.

Citation

BibTeX citation:
@article{li2026,
  author = {Li, E. Rosalie},
  title = {Structural {Terrain}},
  date = {2026-02-17},
  url = {https://fimi.infoepi.org/terrain/},
  langid = {en}
}
For attribution, please cite this work as:
Li, E. Rosalie. 2026. “Structural Terrain,” February. https://fimi.infoepi.org/terrain/.

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