In 2007, there was an increase in the urban cities compared to the number of people living in urban cities.  In 2050, the ratio is expected to pass 70%,  Clearly, urbanization both advantages and challenges.  Urbanization that is done too quickly will increase the need for energy, water, sanitation, as well as for services like education, transportation, health care and other public services.  As a result, everything is tightly interconnected including the social, economic, and environmental aspects.8Currently, we are making cities “smarter” so that these issues are hopefully going to be avoided or resolved.  A “smart city” includes an efficient and productive management of resources and infrastructure, better environment, and administration that are expected to result in better lifestyle for the citizens. It is possible with the better use of ICT which provide eco?friendly, productive, and economically possible solutions for the city.  Some examples of advancements using ICTs are:  better and more real-time water management based on better information exchange; public transportation systems coordinated using data from satellites, air quality, and electromagnetic field watching; home and remote health care monitoring; and world-class digital education using collaborative technologies. Then the concept of “sustainable smart city” (SSC) has emerged. The “ITU—Telecommunication Standardization Sector (ITU?T), through its ITU?T’s Focus Group on SSC, uses the following definition of a smart sustainable city: A Smart Sustainable City efficiency of urban operation and services, and competitiveness, while ensuring that it meets the needs of present and future generations with respect to economic, social and environmental aspects”.9These days, more advancements and innovations can be seen in the world. By using improvements in ICT during the last years the smart cities can contribute to economic growth and development in all areas in order to create clean and sustainable environment, to increase incomes for many people, to support poor persons, and to make the governance of the city more transparent to the whole population.  The ICT infrastructure is the main backbone of the smart city.  It interconnects and coordinates all the different interactions between the applications and infrastructure factors. It acts as the “glue” that connects all the other factors of the smart city.10Setting up a “smart sustainable city” is greater that just changing the previous technologies with new infrastructure. It has to be a massive change in everyday life when using new ICTs in order lead to smart outcomes.  There are three dimensions of a smart city: “environment and sustainability, city level services, and quality of life”. These dimensions need to be balanced to create a smart sustainable city. The following are the attributes of each dimension (some of them can be overlapping):  Environment and sustainability: infrastructure and governance, energy and climate change, pollution, waste, social, economic, and health aspects.  Additionally, city level services; such as technology, infrastructure , sustainability, governance, and economy. As with any good solution, there will be potential problems. On the one  hand, people using ICT have more efficient everyday lives.  On the other hand, people encounter new difficulties and risks. 11   The internet of things is the solution for a number of issues in the smart city today.  With the technologies combining millions of connected, digitized and equipped sensor devices, everything should be possible.  However, when there are large amounts of data, then the data are more prone to cyber attacks and security experts have proof that this is true.  Therefore, there is a need that there need to be an improved strategy. First, find the flaws, then prioritize the critical infrastructure and figure out a safe environment with no security flaws. One other challenge is the proper use of the massive data that we can gather. We will need responsible leaders who can interpret and use the data wisely. Smart cities need will need knowledgeable leaders who can protect their data and use them properly to establish the truth upon which cities make decisions. 12