[Circle Plans to Launch Arc Privacy to Provide Optional Privacy Solutions for On-Chain Finance] Foresight News reports that Circle plans to launch the Arc Privacy confidential smart contract engine, aiming to address the barriers to institutional adoption caused by the default full transparency of current blockchains through 'opt-in privacy.' Arc Privacy will allow users and developers to selectively shield sensitive information in transactions and smart contracts based on actual needs, rather than mandating the disclosure of all data. At the same time, it will retain authorized access required for compliance, auditing, and governance, achieving a balance between privacy and auditability. The engine supports the EVM environment and emphasizes composability, enabling developers to build multi-step private application processes within the Ethereum ecosystem. The article lists several real-world business scenarios, including private payroll distribution, treasury fund transfers, tokenized asset management, confidential perpetual contract trading, and private lending.