What is cryptocurrency simple words?

crypto- a combining form meaning “hidden,” “secret,” used in the formation of compound words: cryptograph.

Cryptocurrency, sometimes called crypto-currency or crypto, is any form of currency that exists digitally or virtually and uses cryptography to secure transactions . Cryptocurrencies don’t have a central issuing or regulating authority, instead using a decentralized system to record transactions and issue new units.

Bitcoin is the name of the best-known cryptocurrency , the one for which blockchain technology was invented. A cryptocurrency is a medium of exchange, such as the US dollar, but is digital and uses encryption techniques to control the creation of monetary units and to verify the transfer of funds.