  Given the prevalence of online misinformation and our scarce cognitive
capacity, Internet users have been shown to frequently fall victim to such
information. As some studies have investigated psychological factors that make
people susceptible to believe or share misinformation, some ongoing research
further put these findings into practice by objectively identifying when and
which users are vulnerable to misinformation. In this position paper, we
highlight two ongoing avenues of research to identify vulnerable users:
detecting cognitive biases and exploring misinformation spreaders. We also
discuss the potential implications of these objective approaches: discovering
more cohorts of vulnerable users and prompting interventions to more
effectively address the right group of users. Lastly, we point out two of the
understudied contexts for misinformation vulnerability research as
opportunities for future research.
