When we conduct usability studies to assess our technologies, we typically work with groups of individuals in order to identify specific design choices that can be adjusted for improved performance. But the usability of a tool goes hand in hand with its utility, a characteristic that is often influenced by broader contexts, including participants' various community affiliations and their roles within them. By broadening our thinking about usability to include these larger social contexts, we can create technologies that are more usable in part because they are also genuinely more useful to the groups they were designed for. Drawing on published research as well her own work developing secure technologies and workflows for journalists, artists and activists, McGregor's talk will address the theory behind this approach to usability, as well as the practical methods and challenges to implementing it in original research contexts.