In today's interconnected world data is the lifeline of any economy. Free-flow of data across the world has made it easier for a person sitting in one part of the world to access the data in any other part of the world. This has made it easier for any business to expand its reach at a global level. However, the importance and use of data does not stop at connecting the individuals and the businesses. Business worth trillions of dollar is done annually where the primary input is data. Five most valuable listed firms in the world - Apple, Amazon, Alphabet (Google's parent company), Microsoft and Facebook - deal primarily in data.