Crypto, short for cryptocurrency, refers to a digital or virtual currency that uses cryptography for security and operates independently of a central bank. Cryptocurrencies are decentralized and are typically based on a distributed ledger technology called blockchain, which records transactions in a transparent and secure manner.
The most well-known cryptocurrency is Bitcoin, which was created in 2009. Since then, numerous other cryptocurrencies have emerged, including Ethereum, Litecoin, and Ripple, among others. Cryptocurrencies can be used for various purposes, including as a means of exchange, as a store of value, or for speculative investment.