On March 29th, EY, one of the "Big Four" accounting firms, officially announced the launch of the EY Blockchain Privacy Sandbox. This initiative aims to assist enterprises and developers in creating privacy-preserving smart contracts on Ethereum EVM chains. The sandbox is primarily intended for experimentation and validation, helping businesses assess the feasibility of privacy smart contracts, test functionalities, and verify application scenarios, while simultaneously lowering the technical barrier for privacy experiments on public blockchains.