Smart Contract Weakness Classification (SWC)
Browse a registry of known smart contract weaknesses and test cases to help identify and understand security issues in blockchain-based code.
Explore smart contract security flaws and examples
The Smart Contract Weakness Classification (SWC) Registry is a resource that catalogs known vulnerabilities and security issues found in smart contracts. You can browse detailed classifications, descriptions, and test cases for each type of weakness, making it easier to understand common risks in blockchain-based code.
Whether you're a developer, auditor, or just interested in smart contract safety, this site helps you identify and learn about potential security flaws. It includes links to specific SWC entries as well as related external references, giving you a comprehensive look at the landscape of smart contract vulnerabilities.
While the site is no longer actively maintained and some content may be outdated, it remains a valuable reference point for those looking to improve their understanding of smart contract security.
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