What is Cryptocurrency?

a digital currency in which transactions are verified and records maintained by a decentralized system using cryptography, rather than by a centralized authority. "decentralized cryptocurrencies such as bitcoin now provide an outlet for personal wealth that is beyond restriction and confiscation"

cryptocurrency?

Cryptocurrency is a type of digital currency that generally only exists electronically. ... Bitcoin and Ether are well-known cryptocurrencies, but there are many differentr cryptocurrency brands, and new ones are continuously being created.