Research on Smart City and Information Security in Digital Economy Era

Cities are the center of political, economic, scientific and cultural development of human society, the base of creating public wealth, and the breeding ground of environmental pollution, traffic congestion, social security and other problems. Global problems such as ecology, energy shortage, resource waste, environmental pollution and population growth are becoming increasingly prominent. Relevant statistics show that the trend of sub-health state has been obvious in urban development in China. Smart city is the product of the advanced stage of social and economic development, and people's beautiful vision of smart city is gradually rooted in people's hearts. The construction and development of smart cities will become the general trend of the development of global cities, and change the production of cities and the way of human life in the future. Smart cities have become an inevitable trend of global development. Urbanization has brought great opportunities to the development of smart cities, and at the same time, it has also brought about various problems of sharp contradictions.