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Smartphones have become an integral part of our daily life. Businesses now offer services through smartphones. Users also store sensitive personal information on their smartphones and perform financial transactions. Consequently, security attacks on smartphone platforms have also increased significantly. Traditional desktop anti-virus software are not very effective in smartphones due to the restrictive security model and they are heavily dependent on their definition updates. In this paper, we propose a Secure Anti-Malware framework (SAM) for smartphone operating systems to prevent malicious activities. The core idea of the framework resembles a smart city. The framework acts as the government of the city and treats the applications as citizens. It has components to enforce laws (prevent) and perform policing (monitor and control). It also provides APIs to aid anti-virus software and third-party applications to …