PANews reported on June 9th that, according to The Block, Starknet has launched the zero-knowledge privacy framework STRK20, providing balance masking and private transfer capabilities for any ERC20 asset on the network, and has already been implemented on strkBTC. This framework allows developers to introduce privacy features for scenarios such as transfers, exchanges, lending, staking, payments, and donations without needing to build a separate privacy system. STRK20 uses an embedded "masking" mode in the asset path, rather than a traditional mixer structure, and introduces a viewing key mechanism to selectively disclose specific wallet information only upon receiving a legally valid request, thus balancing privacy protection and compliance requirements. Starknet CEO Eli Ben-Sasson believes that such ZK privacy solutions have the potential to make regulatory investigations more precise and reduce the collateral impact on a large number of wallets.