The ambition of this special issue is to contribute to contemporary scholarly analyses of border security by bringing more focus onto a specific field of inquiry: the practices of the plurality of power-brokers involved in the securing of borders. Border security is addressed from the angle of the everyday practices of those who are appointed to carry it out; considering border security as practice is essential for shedding light on contemporary problematizations of security. Underscoring the methodological specificity of fieldwork research, we call for a better grounding of scholarship within the specific agencies intervening in bordering spaces in order to provide detailed analyses of the contextualized practices of security actors.