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The purpose of this scoping review is to highlight the machine learning tools used in research to address and prevent violent extremism. To achieve this goal, the following objectives guide this study: (1) describe outcomes that have been studied; (2) summarize the data sources used; and (3) determine whether the reporting of machine learning predictive models aligns with the established reporting guidelines for reporting of prediction models. ProQuest, Compendex, IEEE, JStor and PubMed were searched from June to July 2022. Based on the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) guidelines, databases were searched for articles related to machine learning models applied to the address and prevention of violent extremism. Following standards established by reporting guidelines, findings were extracted from published articles, including general study characteristics, aspects of model development, and reporting of results. Of 53 unique articles identified by the search, 18 were included in the review. Most articles were published between 2016 and 2022 (n = 16, 88.8%). Studies focused on violent extremism worldwide, with the majority of studies not specifically focused on a distinct region (n = 11, 61.1%). The most frequently used machine learning algorithms were support vector machines (n = 9, 50%), followed by random forests (n = 5, 27.7%), natural language processing (n = 4, 22.2%), and deep learning (n = 4, 22.2%). The number of features used varied greatly, ranging from 17 to 7556. Many studies did not report an epistemological or theoretical framework which guided their machine learning approaches or interpretation of findings (n = 8, 44.4%). Many studies did not incorporate the TRIPOD or any other recommended guidelines for the reporting of predictive models. Future research in this field should prioritize evaluating the impact of prediction models on decisions for addressing and preventing violent extremism.

Hate speech, harassment, and an increasing prevalence of right-wing extremism in online game spaces are of growing concern in the United States. Understanding trends in how and to what extent extremist groups utilize online gaming spaces is vital in taking action to protect players. To synthesize the current state of extant research and suggest future directions, we conduct a systematic review of the literature on right-wing extremism in videogames. We detail our search protocol, selection criteria, and analysis of the collected work, and then summarize the findings. Important themes include how and why extremists’ targeting of online game communities began, the role of Gamergate in this process, and the industry and market context in which such activities emerged. We describe the current nature of the problem, with extremist language and ideology providing a kind of on-ramp for radicalizing disenfranchised gamers. We conclude with a summary of responses from industry and legislators.

The reception to 2020’s The Last of Us Part II was a maelstrom of misleading marketing, unprecedented leaks, and a vicious fallout characterized by prejudiced online harassment and sprawling conspiracies. Through an in-depth analysis of Part II‘s reception, this article seeks to apprehend the increasing frequency of such controversies in popular culture as a distinct transformation of online fandom, which is defined by the agendas of the alt-right. The “anti-woke” campaigns emblematic of these communities are best understood through what this article defines as alt-fandom, where conspiracy theories are fabricated in order to defy the supposed ideological and narrative transgressions of a new text. In the case of The Last of Us franchise, the challenges posed by its corrosive alt-fandom are endemic to a new reception climate confronting the production of media texts.

The Handbook is divided into seven self-contained chapters, which build on each other but also allow the reader to jump in at any point, depending on their interests. Specific content may also be found using the keyword index. The seven chapters are distributed between the Handbook’s two main parts, each of which has a specific focus. A third, supplementary section consists of a selection of additional articles on relevant topics. Part 1, consisting of Chapters 1 to 4, deals with the theoretical foundations of violent extremism prevention under the key topics of ‘theoretical references’, ‘phenomenology’, ‘radicalisation processes’ and ‘evaluation’. Part 2 comprises Chapters 5 to 7 and places the focus on violent extremism prevention practice in Germany. This section deals with the approaches practised here, existing prevention programmes and the current prevention landscape. Chapters 1 to 7, which cover what we could call the main body of violent extremism prevention, are supplemented by a third section comprising excurses into complementary questions and areas of society which, although not explicitly considered part of the field of violent extremism prevention itself, nevertheless influence the occurrence of radicalisation and the diverse manifestations of politically and/or religiously motivated extremisms. The topics touched upon there include conflict transformation, the media, criminal law, mobile counselling, civic education, football culture, Islamic associations, victim counselling and ethics.

This publication of SEARCCT’s Selection of Articles (SOA) 2023 Special Issue: “Building Digital Resilience in Preventing and Countering Violent Extremism (PCVE)” aims at providing an all encompassing overview of the inaugural SEARCCT’s International Conference 2023 (S.I.C.) 2023 proceedings, which was held from 13 to 15 June 2023 in Kuala Lumpur. The publication also includes articles authored by esteemed speakers and moderators of the conference and other subject-matter experts in the field.

The article focuses on the role of social media platforms in the radicalization of domestic right-wing terrorists. It discusses a specific case of a mass shooting in Buffalo, New York, where the shooter was radicalized online. It highlights the shooter’s use of social media platforms like 4chan, known for hosting extremist content, and the livestreaming of the attack, which is becoming a popular tool among terrorists to publicize their crimes.