Privacy Boost launched on OP Mainnet on April 22 as an enterprise-focused privacy solution for Ethereum ecosystem users. The plug-and-play SDK, developed by Sunnyside Labs, uses a hybrid architecture combining zero-knowledge technology and trusted execution environments, with proof generation taking under 500 milliseconds. The release says the product supports privacy computation on any OP Stack chain and is designed to add private transfers, discreet DeFi interactions, self-custody, and compliance-oriented customization including KYC and audit requirements.