Cryptocurrency is a form of digital money that is designed to be secure and, in many cases, anonymous.
It is a currency associated with the internet that uses cryptography, the process of converting legible information into an almost uncrackable code, to track purchases and transfers.
Why are you copy/pasting newspaper articles... Not the way it works. http://www.telegraph.co.uk/technology/2018/02/10/bitcoin-billionaires-turn-millionaires-cryptocurrency-world/