Big Data is changing our world with masses of information stored in huge servers spread across the planet. This new technology is changing not only companies but governments as well. Mexico and Brazil, two of the most influential countries in Latin America, are entering a new era and as a result, facing challenges in all aspects of public policy. Using Big Data, the Brazilian Government is trying to decrease spending and use public money better by grouping public information with stored information on citizens in public services. With new reforms in education, finances and telecommunications, the Mexican Government is taking on a bigger role in efforts to channel the country’s economic policy into an improvement of the quality of life of their habitants. It is known that technology is an important part for sub-developed countries, who are trying to make a difference in certain contexts such as reducing inequality or regulating the good usage of economic resources. The good use of Big Data, a new technology that is in charge of managing a big quantity of information, can be crucial for the Mexican Government to reach the goals that have been set in the past under Peña Nieto’s administration. This article focuses on how the Brazilian and Mexican Governments are managing the emerging technologies of Big Data and how it includes them in social and industrial projects to enhance the growth of their economies. The article also discusses the benefits of these uses of Big Data and the possible problems that occur related to security and privacy of information.