Smart communities of the future have features that make them susceptible to novel forms of cyber-attack and a potential loss of privacy for the citizens they serve. We view these communities as metro level wide area control systems with sensors and actuators located in residences, the workplace, in mobile vehicles and even worn on the body. In addition, this distributed system may not be subject to centralized control. It needs to be responsive to the individual needs of citizen owners yet still maintain the ability to coordinate actions across a neighborhood, or larger metropolitan area. The question we wish to address is, as frameworks emerge to handle these unique challenges, how can we provide security and privacy for such and open and decentralized environment? We suggest ways to add security and privacy to low level IoT devices, to a cloudlet based application platform, to a wide area SDN for coordination, and to negotiation protocols for citizen coordination.