Abstract Over the recent years, research in the field of threat and defense has accumulated evidence on how encounters with various psychological threats influence human behavior, cognition, motivation, affect, and health. Unifying different theoretical threat models, the General Process Model of Threat and Defense claims that different threatening concerns have a similar underlying dynamic. Some years after the publication of this theory, we deem it important to take a comparative look at psychological threat, comparing threats regarding their properties and outcomes on personal and social level. As potential dimensions to describe psychological threats, we discuss the existential nature of concerns, phenomenological worlds involved, and thwarted needs in threat encounters. We also discuss data‐driven approaches to threat classifications, describing first empirical efforts to create threat taxonomies, and suggest directions for future research. This research will enhance our understanding of threat dynamics, and will help us make stronger, more clear‐cut assumptions about human behavior upon experiencing threat.