A cryptocurrency is a digital or virtual currency that uses cryptography for security and operates independently of a central bank. Cryptocurrencies are decentralized, meaning they are not controlled by any government or financial institution.
The most well-known cryptocurrency is Bitcoin, which was created in 2009. Since then, thousands of other cryptocurrencies have been created, each with its own unique features and use cases.
Cryptocurrencies can be purchased through cryptocurrency exchanges, which allow users to exchange fiat currency or other cryptocurrencies for the desired cryptocurrency. Some popular exchanges include Coinbase, Binance, and Kraken.