It all started with Bitcoin, first introduced as a white paper in 2009 as Peer-to-Peer Electronic Cash System. Since then, various types of digital currencies have been added, with the market cap reaching $ 2.65 trillion. Niche group of investors profited from the mysterious blockchain technology since the cryptocurrency was least common to individual investors over the globe. In 2014, companies such as Overstock accepted Bitcoin as one of the payment methods against online purchases. The sam...