Circle Internet Financial has enhanced blockchain transaction security by integrating the CGG+21 signing protocol with the CGG+21 traitor tracing protocol, allowing third-party observers to identify malicious signers in real-time, thereby mitigating attacks. This initiative is part of Circle Research's effort to fortify Web3 transactions by releasing an open-source Golang implementation of CGG+21 threshold signatures, which offers a recommended update to the GG18 protocol. This new protocol requires fewer communication rounds, making it faster and more efficient, particularly for cold storage scenarios, as it reduces vault visits needed for signing transactions. Threshold signatures provide a privacy-preserving alternative to native multi-signature features on blockchains like Ethereum by appearing as ordinary signatures, thus maintaining signer anonymity while also being cost-effective in terms of gas fees. Additionally, the CGG+21 protocol enhances security by embedding zero-knowledge proofs of correct behavior within the main protocol, allowing immediate detection of misbehavior. Existing Binance tss-lib users can upgrade to the new Circle Research cggplus module without changing their keys, ensuring a smooth transition to improved security measures.