SlowMist Blockchain Security Audit is a professional security audit service focused on blockchain infrastructure and cryptocurrency platforms. The service provides comprehensive security testing for blockchain mainnets, cryptocurrency exchanges, and blockchain-based projects using black-box, gray-box, and white-box testing methodologies. The service covers multiple critical blockchain security areas including P2P network security (Sybil attacks, Eclipse attacks, BGP hijacking), RPC security (denial of service, eavesdropping), consensus mechanism vulnerabilities (51% attacks, long range attacks, double-spend attacks), cryptographic security (private key prediction, length extension attacks), and transaction security (replay attacks, malleability attacks, false top-up attacks). For blockchain mainnet audits, the team examines network layer, consensus layer, and cryptographic components. The cryptocurrency exchange listing audit focuses on vulnerabilities that concern exchanges such as private key prediction, rug pull attacks, and RPC theft. Code-based testing includes static source code analysis using scanners for C/C++/Golang/Rust/Java/Node.js/C#, along with manual code review for state consistency, numerical overflow, parameter verification, and unit test coverage. SlowMist offers customized audit plans for specific blockchain ecosystems like Polkadot and Cosmos, with specialized audit entries for Substrate-based projects. The team has published security implementation guides for various blockchain platforms and maintains open-source security checklists and vulnerability lists on GitHub.