Socket
Protects your open source dependencies against supply chain attacks before they enter your code
Overview
Socket is an open source dependency security platform focused on preventing supply chain attacks: malicious packages, typosquatting, injected backdoors and compromised dependencies after publication. Unlike traditional SCA tools that only scan known CVEs, Socket analyzes the actual behavior of each package's code (network access, file system, script execution) to proactively block unknown threats.
After a $60M Series C funding round at a $1 billion valuation (Thrive Capital, a16z), Socket protects over 10,000 organizations in 2026. Its reachability analysis feature reduces CVE false positives by 60%. The Business plan adds GitHub Actions analysis and AI models (MCP servers), a first on the market.
Our verdict
Socket is the essential complement to Snyk for teams wanting real supply chain coverage, not just a CVE list. Its behavioral package analysis is unique. The free plan (1,000 scans/month) suits small projects, and the Team plan at $25/dev is reasonable. Only limitation: mainly focused on npm/Python/Java:if your stack is exotic, verify coverage before subscribing.