Securing Blockchain Ecosystem

  • Crypto security consulting


    Smart Contracts Audited

  • Crypto asset security


    Ecosystem Users

  • Crypto asset security


    Protected Assets

About Beosin

Beosin is a leading global blockchain security company co-founded by professors from world-renowned universities and there are 40+ PhDs in the team. It has offices in Singapore, Hong Kong, Japan and other 10+ countries and regions. With the mission of "Securing Blockchain Ecosystem", Beosin provides "All-in-One" blockchain security solution covering Smart Contract Audit, On-chain Risk Monitoring & Alert, KYT AML, and Crypto Tracing. Beosin has already audited more than 3000 smart contracts including famous Web3 projects PancakeSwap, DODO, DeBox and Ankr and all of them are monitored by Beosin EagleEye. The KYT AML are serving 100+ institutions including Hashkey, Cobo, OpenBlock, Aegis and Celer.

Smart contract testing


Security experts 40+ PhDs

Smart contract vulnerability scanning


Years of cybersecurity experience

Solidity auditing

Advanced Technologies

Onchain AI Data Analysis & Formal Verification Technology

Ethereum smart contract auditing


Labeled crypto addresses

Decentralized application security


Identified code vulnerabilities

Beosin-Web3-security-logoBeosin AlertSee more

Audited ProjectsSmart Contract Audit

  • Smart Contract AuditArbswap2023
  • Smart Contract AuditRonin2023
  • Smart Contract AuditDeBox2023
  • blockchain-audit-OKCOKC2022
  • Cryptography analysisSeasonSwap2022
  • CakePool-smart-contracts-audiCakePool2022
  • ANKR -web3-auditANKR2022
  • Smart contract securityAelf2021
  • Smart contract verificationClover2021
  • Smart Contract AuditDODO2021

Smart Contract Audit

Beosin has audited more than 3,000+ smart contract projects and assisted project parties in discovering and fixing more than 1,000 medium to high-risk security vulnerabilities. These projects come from Ethereum, EVM-compatible chains, Solana, Near, EOS, aelf, and other blockchain platforms. Beosin audits the smart contract in 3 categories: Coding Conventions, General Vulnerability, and Business Security. Combining the results from automated formal verification and manual code review by security experts, Beosin can precisely identify the security problems in smart contracts and assist the project party in fixing them to avoid crypto loss.

NFT Contract

DeFi Contracts

GameFi Contract

Tokens Contracts

Other Customized Smart Contracts

Coding Security Audit

Consensus Security Audit

Account System Security Audit

Asset Security Audit

Application-layer Security Audit

Blockchain Security Audit

Beosin offers a comprehensive audit service of Layer 1 and Layer 2 blockchain platforms with three options. They are Black Box, Grey Box, and White Box audits. The audit covers all aspects of platform architecture and functionalities, including block production, node communication, consensus algorithm, and governance logic. The audit report includes recommendations on fixing identified issues.

Cryptocurrency Tracing

Beosin Cryptocurrency Tracing service helps clients prevent cryptocurrency threats such as scams, ransom, assets transferred into Tornado Cash, and other security incidents and theft cases.

AML Risk Assessment

Real-time Intelligence Notification

Transaction Analysis

Crypto Address Monitoring

Forensics Analysis Report

VaaS (Verification-as-a-Service)

The industry-leading security smart contract verification platform can automatically discover known and unknown vulnerabilities and business logic issues in smart contracts and provide professional recommendations for fixing problems. It applies multi-dimensional detection capabilities, including static scanning, fuzzy testing, and formal verification technologies.

Ethereum auditing

Known Vulnerabilities

Cryptocurrency exchange security

Unknown Vulnerabilities

Crypto security

Logical Correctness

Smart contract best practices

Support for Multiple Blockchain Platforms


EagleEye provides 24by7 blockchain security monitoring and notification services. It sends customers real-time security alerts and warnings when it detects risks like hacker attacks, frauds, flash loans, rug pulls through on-chain and off-chain data analysis, and multi-dimensional security assessments.

Web3 security

Transaction Risk Detection

Smart Contract Audit

Contract Risk Identification

Crypto audit

Threat Intelligence Collection

Smart Contract Audit

Project Operation Dashboard

Serving Global Customers

Partnered Crypto Exchanges

Partnered Blockchain Ecosystems

Renowned Audited Projects

Partnered Universities & Organizations

RegTech Clients

Business Partners


Web3 security testing

Blockchain Security and Regulation Monthly Recap of February: $422M lost in attacks

March 01, 2024
Web3 security testing

Blast is about to launch its mainnet. What are its security risks and potential opportunities?

February 29, 2024
Web3 security testing

At the beginning of2024,Beosin has obtained ISO 27001 certificationafter SOC 2 certification

February 20, 2024
Web3 security testing

Focusing on ERC404 innovation, Beosin provides security audit services for ERC404 projects

February 19, 2024

Learn MoreSmart Contract Audit