Zcash is a cryptocurrency that focuses on privacy and security. It allows users to send and receive funds while keeping their transaction details confidential. Unlike some other cryptocurrencies, Zcash offers the option for "shielded" transactions, which use advanced cryptographic techniques to hide the sender, receiver, and amount involved. Launched in 2016, Zcash is built on the Bitcoin codebase but incorporates unique features to enhance user privacy. It operates on a decentralized network, meaning no single entity controls it. Zcash aims to provide financial privacy while still allowing for transparency when needed, making it a versatile option in the cryptocurrency space.