This text aims to present some aspects of the social assistance policy in Brazil, discussing the notions of vulnerability and social risk that are part of the documents of the SUAS (Unified Social Assistance System). In this context, it focuses on the effects that emerge from the use of these concepts in the daily life of professionals in their interventions with families. From an institutionalist approach, with the thought of Deleuze, Guattari and Foucault, the text problematizes the risks present in these connections that can make the professionals themselves vulnerable when the lack of knowledge can diminish the capacity of the teams but also of families to be active and autonomous. These risks are: the risk of psychologization, the risk of disqualification, the risk of overloading women and the risk of resonance of vulnerability. These risks may hide moral and tutelary practices preventing social relations.