Tornado Cash is a privacy-focused cryptocurrency that allows users to make private transactions on the Ethereum blockchain. It uses a technology called zero-knowledge proofs to ensure that transactions remain anonymous and untraceable. Users can deposit their cryptocurrency into the Tornado Cash smart contract, which mixes their funds with other users’ funds, making it difficult to trace the origin of the coins. Tornado Cash aims to provide users with a high level of privacy and security when conducting transactions on the blockchain.