“…Abbreviation: RWE, right-wing extremism.T A B L E 2 People component result overview: User behaviours, attributes and susceptibility to extremism online (find more comprehensive descriptions in Appendix B2). emotional vulnerability to radicalization include feelings of alienation, and shame, personal identity crises (e.g., discrimination, deprivation), some mental health problems, preferences for hierarchy and dominance in society, low civic, media and digital literacy, predominant online news consumption, partisan political identities, and pre-existing extremist attitudesAngus (2016), Briggs and Feve (2013), Cherney et al (2020), Nienierza et al (2019) Younger users often fail to recognize extremist threats online as such and are particularly vulnerable to extremist outreach online Nienierza et al (2019) Offline experiences and relations are a key factor of online radicalization Offline experiences can contribute to a user's receptiveness to online radicalization Bliuc et al (2019) Extremist communities provide social support online and shelter from an offline world perceived as hostile, reaffirming extremist ideologies De Koster and Houtman (2008) Offline relations to close relatives, teachers or good friends are often the first contact with extremist ideologies Gaudette et al Risk analysis framework identifies online exposure to extremist content as a key propensity for lone wolf actors Clemmow et al (2020)Online behaviour of individual extremist actorsSmall nucleus of actors produce the majority of online content and set agendas Superusers create a disproportionately large amount of the extremist content and particular topics or content may stem from a critical minority of sourcesBrace and Baele (2022),Kleinberg et al (2020)…”