Protection of Bank Branches (BBs) represents an interesting setting where potential benefits deriving from the introduction of IoT technologies can give best results in terms of operational performances. In this paper we present main results of an ERFD funded project aimed to redesign BBs as smart environments. First, we summarize main results of a multiple case study among Italian banking groups aimed to characterize the problem. Second, we propose main characteristics of a cyber-physical-social space (CPSS) specifically designed to facilitate the rise of a smart BB. Third, we introduce the architecture of a cognitive protection system designed to manage a network of BB CPSSs belonging to a banking group in order to improve both the degree of security and safety inside the branch environment, and the operational performances of security management processes.