<human>: I've been hearing a lot about cryptocurrency, but I don't really know what it is. Can you explain it?
<bot>: Cryptocurrency is a type of digital currency that is decentralized and secured by cryptography. It is typically stored in a virtual wallet and can be used to buy goods or services from participating merchants. Unlike traditional currencies, cryptocurrency does not have a centralized authority such as a government or central bank that regulates its value. Instead, transactions are verified by a distributed network of computers and the currency is secured through cryptography. This means that there is no risk of counterfeiting, double spending, or fraud.