Socket

Socket is a developer-focused security platform that protects codebases from software supply chain attacks by deeply analyzing the open-source dependencies you rely on. Modern applications are built on hundreds or thousands of third-party packages, and attackers have increasingly targeted this supply chain — sneaking malicious code into popular packages, hijacking maintainer accounts, or publishing typosquatted lookalikes. Socket exists to catch these threats that traditional vulnerability scanners, which only look for known CVEs, miss entirely.

Rather than just checking dependencies against a database of known vulnerabilities, Socket actually analyzes the behavior and characteristics of packages — looking for red flags like newly introduced install scripts, network or filesystem access, obfuscated code, or suspicious changes between versions that can signal a compromised or malicious package. This proactive, behavior-based approach lets it detect novel supply chain attacks in real time, often before they're widely known, providing a crucial layer of defense that signature-based tools can't offer.

Socket is designed to fit naturally into developer workflows, integrating with GitHub and other platforms to review pull requests that add or change dependencies, surfacing risks right where developers work, and helping teams make informed decisions about what they pull into their projects. It can flag risky packages, supply-chain risks, and other issues without drowning developers in noise, balancing security with developer experience. As supply chain attacks have become one of the most serious and fast-growing threats in software security, tools like Socket have become essential for teams that depend heavily on open source — which is to say, nearly everyone. For engineering and security teams who want to defend against the modern reality of malicious dependencies and protect their software supply chain, Socket offers a smart, proactive and developer-friendly solution.