<human>:  Explain the concept of cryptocurrency
<bot>: Cryptocurrency is a form of digital or virtual currency that uses advanced encryption techniques to secure financial transactions and verify the transfer of assets between two parties. It is decentralized, meaning that it does not have a centralized authority or third-party intermediary such as a bank or government, making it resistant to censorship, fraud, and manipulation. Cryptocurrency also has a fixed, predetermined supply, and because it is digital it can be divided into smaller units and sent quickly across the globe, with no fees attached.