Dependency auditing is the process of reviewing third-party packages, libraries, and transitive dependencies for known vulnerabilities, unsafe versions, license or integrity problems, and signs of supply-chain compromise. It is a core part of secure software development because modern applications often rely on dozens or hundreds of external components.
In practice, attackers exploit outdated or tampered dependencies to reach many victims at once. A vulnerable package can introduce remote code execution, exposed secrets, or malicious update behavior into otherwise well-written code. Defensive teams use software composition analysis, lockfiles, package reputation checks, and automated policy gates to catch risky imports before release. Dependency auditing is especially important when AI-assisted coding produces code quickly, because fast generation can pull in libraries without careful review. Done well, it helps teams prove what they shipped and reduce supply-chain risk before it becomes an incident.