Does GitHub Copilot introduce vulnerabilities?

Yes, Copilot frequently suggests code patterns that contain security flaws. Common vulnerabilities include hardcoded credentials, missing input validation, SQL injection via string concatenation, insecure random number generation, and disabled SSL verification. Because Copilot is trained on public GitHub repositories, it reproduces insecure patterns it has seen in training data. Developers who accept suggestions without review propagate these vulnerabilities into production. GitHub has introduced Copilot code scanning features but these catch only a fraction of potential issues. UNPWNED applies bounded outside-in checks to the deployed application regardless of whether the code was written by AI or humans. Internal validation and randomness require direct review. SQL-injection, reflected-XSS, and path-traversal probes are not enabled in the current production profile.