Odaily Planet Daily News Worldcoin released a security audit report. Starting in April 2023, audit firms Nethermind and Least Authority conducted two separate security audits on the protocol. Nethermind focused on auditing the protocol's smart contracts, including the World ID contract, World ID state bridge, World ID sample airdrop contract, Worldcoin token (WLD) grant contract, and WLD ERC-20 token contract and related attribution wallets. Of the 26 items that appeared during this security assessment, 92.6% (24 items) were determined to be fixed after the verification phase, while one was mitigated and the remaining one was confirmed. Least Authority focused on auditing the protocol's use of cryptography, including its use of the Semaphore protocol and enhancements made to scale the protocol in a more gas-efficient way. These include the cryptographic design and implementation of the protocol, the Rust implementation of the Semaphore protocol, and the Go implementation of the Semaphore Merkle Tree Batcher (SMTB). Least Authority found three issues and made six recommendations, all of which "have been resolved or are planned to be resolved." “We found that the cryptographic components of the Worldcoin protocol are generally well-designed and implemented,” Least Authority said.