Cryptocurrency is a digital asset designed as a medium of exchange based on Blockchain technology. One of the most well-known examples is Bitcoin, which has been a pioneer since 2009. Additionally, Ethereum introduces smart contract features that enable applications to run without third parties. Crypto offers fast transactions and low fees, especially for cross-border transfers. However, its high price volatility makes it risky as an investment. Therefore, a thorough understanding and proper strategy are essential before using or investing in cryptocurrency.