Cryptocurrency is a digital or virtual form of currency that uses cryptography for security. Unlike traditional currencies issued by governments, cryptocurrencies operate on decentralized networks based on blockchain technology. This ensures secure, transparent, and immutable transactions.

Blockchain technology is the underlying system behind cryptocurrencies. It is a distributed ledger that records all transactions across a network of computers. Each block in the chain contains a list of transactions and a reference to the previous block, creating a secure and chronological chain. Once a block is added, it cannot be altered without changing all subsequent blocks, ensuring data integrity and security.

Cryptocurrencies offer several benefits, including: Decentralization, Security, Lower transaction fees, Fast transactions, Accessibility.