Cryptocurrency is a type of digital money that uses blockchain technology. It doesn't exist in physical form but as data blocks validated by a hash. When users make transactions, data mining occurs. While cryptocurrencies offer benefits, they also have drawbacks, and there are no laws governing their use as currency. Governments need to recognize digital money for it to be widely accepted. In the future, physical money may be replaced by digital currency due to the convenience it offers in the era of technological advancement.