This commentary is a friendly response to Chris Philo's Boundary Crossing article on the relevance of security as a theme for that year's RGS Annual Conference (Philo C 2012 Security of geography⁄geography of security Transactions of the Institute of British Geographers 37 1–7). The article did the important preliminary work of unfixing the meanings of security, and in particular introduced a fertile heuristic distinction between big‐S and small‐s security. This article seeks to bring this useful distinction into relationship with this year's (2014) RGS conference theme, the co‐production of knowledge, through a located focus on the co‐production of Caribbean big‐S and small‐s securities. It argues ultimately that co‐production is a concept that needs to be used critically, and that engagement with Caribbean and other postcolonial theorists would be an excellent starting point.