There is a considerable body of literature evaluating legacies of sport mega-events (Cornelissen, 2007; Cornelissen, Bob, & Swart, 2011; Fourie & Santana-Gallego, 2010; Gold & Gold, 2005; Hall, 1998, Preuss, 2007ab). However, with few exceptions (Boyle & Haggerty, 2009; Coaffee, Fussey & Moore, 2011; Giulianotti & Klauser, 2010) there has been little research into what has been described as the ‘security legacies’ of large one-off events. Mega-events that are not permanently based at the same site - ambulatory spectacles that move from country to country - may produce ‘a range of security-related strategies and impacts which continue to have significance beyond the life of the sport event’ (Giulianotti & Klauser, 2010, pp. 53-54). In short, although the mega-event moves from one site to another, a range of legacies - whether planned or unplanned - may remain in the host environment. Legacies include expertise and resources in respect of post-event security. Therefore, this study assesses the impact of the 2010 FIFA World Cup (FWC) in terms of security measures, and their subsequent legacy focussing on particular changes pertaining to security measures: practices (visible policing), technologies (CCTV and equipment) and externally imposed social transformations (removal of the undesired) that result from event hosting.