A new study published in the JD Journal for Deradicalization by HSToday author Eoin B. Healy examines the increase in global terrorism following the October 7, 2023, attacks and the role of antisemitism within extremist ecosystems.
The paper uses incident-level data from the Global Terrorism Trends and Analysis Center’s (GTTAC)’s Record of Incident Database (GRID) to analyze changes in terrorism frequency over a 1,097-day period.
The study found that global daily terrorism rates increased by 44 percent, while Western Europe experienced a fivefold increase in monthly incidents.
Healy’s research examines two radicalization mechanisms — the contagion effect and the validation effect — arguing that the October 7 attacks and subsequent conflict-related developments contributed to conditions that reinforced extremist narratives.
The paper identifies antisemitism as a key ideological accelerator and examines its role in contemporary extremist mobilization.
The study, “Antisemitism as Accelerator: Contagion and Validation Effects Driving the Post-October 7 Surge in Global Extremist Violence,” highlights the importance of understanding these dynamics when developing deradicalization strategies aimed at addressing evolving extremist threats.
