The cisgender category has recently been invented by the actors of the transgender movement and studies to refer to non-trans people. Based on her own research trajectory at the crossroads of social psychology and gender studies, the author questions three epistemological ‟modes of becoming”: becoming a woman, becoming white and becoming cis. The latter differs from the other two, because it implies, for the time being, not only accepting the interpellation of the other (until now in the position of the object of knowledge), but also occupying an empty place in the field of situated knowledges. This raises ethical questions about the contributions of psychoanalysis and psychology, combining a reflection on the vulnerability of the minoritized and gender violence with the need to renounce epistemic violence.