This paper documents some of the socio-technical issues involved in developing security measures for wireless mesh networks (WMNs) that are deployed as part of a community network. We are interested in discovering whether (and exactly how) everyday social interaction over the network is affected by security issues, and any consequent design implications. We adopt an interdisciplinary methodological approach to requirements, treating a community as an 'organization' and implementing an approach, OCTAVE, originally designed to uncover security elements for organizations. Using a focus group technique we chart some of the assets and security concerns of the community, concerns that need to be addressed in order for WMNs, or indeed any network, to become a truly 'mundane technology'.