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Potential terrorists can be identified from social media posts – new research

August 2, 2024
in Social Science
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Potential terrorists can be identified from social media posts – new research
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Researchers at the University of Bath have identified signals in social media posts that can predict when someone posting on far-right forums is likely to go on to commit a terrorist act.

Researchers at the University of Bath have identified signals in social media posts that can predict when someone posting on far-right forums is likely to go on to commit a terrorist act.

Posts that related specifically to logistics, operational planning (including knowledge about weapons and avoiding law enforcement) and violent action marked out individuals that would go on to perpetrate terror offences. This was evident up to four years before criminal action.

In the first study of its kind, published in Personality and Social Psychology Bulletin, the team compared posts of convicted far-right terrorists with posts from people holding far-right extremist views who have not gone on to commit violence offline. The majority of offenders were convicted in the United States (75%), with 20% convicted in the United Kingdom and the remaining 5% in Australia, Canada, and New Zealand.

The discussion of far-right ideology and the expression of hateful views actually decreased the probability that the user mobilised to action.

Online Signals of Extremist Mobilization is published as senior US and UK police officers warn, in an interview by the BBC, that an increasing number of those turning to terrorism are driven by ‘a fascination for violence, rather than ideological fanaticism’.

“Our research shows that we can identify people on social media who go on to commit extremist action by picking up on posts that are about acquiring know-how and developing capability to commit terrorism,” said Dr Olivia Brown, Associate Professor in Digital Futures at the University’ School of Management and Deputy Director of the Bath Institute for Digital Security and Behaviour.

“This method can help to identify people that are genuinely dangerous and likely to cause physical harm as opposed to those that are likely to contain their extremism to radical views and hate speech online.”

The researchers spent a year compiling a unique database of over 200,000 social media posts from 2011-2019. These posts were from 26 individuals convicted of terrorism-related offences (mostly in the US and some in the UK) and 48 people sharing extremist content on far-right forums on Iron March, Gab, and Discord, who had not been convicted.

“Unfortunately, the sheer volume of extremist content online means that identifying people most likely to cause harm is like finding a needle in a haystack,” said Dr Brown.

“We have pinpointed signals of risk to make the haystack smaller and the needle bigger, which can be used to prioritise monitoring resources on a smaller pool of people who we think are more likely to act.

“Of course, ideological content will still be a major concern to security services, but this is an additional technological tool, alongside existing resources, to differentiate between individuals who are likely to engage in terrorist action and those who are not.”

Dr Brown is seeking funding to apply the methods of this research to the January 6 Capitol Building riots in the USA, to understand more about the mechanisms of mobilisation.

She is also working with law enforcement to look at social media posts in the context of online forums – examining group interactions and creating a tool to analyse risk within social networks.

The research was funded by the Centre for Research and Evidence on Security Threats (CREST).

Online Signals of Extremist Mobilization is published in Personality and Social Psychology Bulletin.

ENDS/

 

Notes for editors:

  • For more information, please contact the University of Bath press office: press@bath.ac.uk
  • About the convictions: Of the 26 individuals that the researchers were able to match court and police records with online usernames, three were convicted of a violent offence involving the murder of one or more people, seven of violent assault, two of plotting an act of terrorism, seven of possession of terrorism related materials or weapons, three of membership of a terrorist organisation, and three of making violent threats and three of distributing harmful content. 

The University of Bath 

The University of Bath is one of the UK’s leading universities, with a reputation for high-impact research, excellence in education, student experience and graduate prospects.  

We are ranked 6th in the Guardian University Guide 2024 and 8th in both the Complete University Guide 2025 and The Times and Sunday Times Good University Guide 2024. We are also ranked among the world’s top 10% of universities, placing 150th in the QS World University Rankings 2025. Bath was rated in the world’s top 10 universities for sport in the QS World University Ranking by Subject 2023. 

We produce some of the world’s most job-ready graduates and were named University of the Year for Graduate Jobs by the Daily Mail University Guide 2024. 

Research from Bath is helping to change the world for the better. Across the University’s three Faculties and School of Management, our research is making an impact in society, leading to low-carbon living, positive digital futures, and improved health and wellbeing. Find out all about our Research with Impact: https://www.bath.ac.uk/campaigns/research-with-impact/ 

 



Journal

Personality and Social Psychology Bulletin

DOI

10.1177/01461672241266866

Method of Research

Meta-analysis

Subject of Research

People

Article Title

Online Signals of Extremist Mobilization

Article Publication Date

31-Jul-2024

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