Third-party Python packages can introduce security risks if not properly evaluated. Developers should assess the package’s trustworthiness by checking its maintenance status, community support, and vulnerability history. Regular updates are crucial as they often include security patches. Tools like Safety and Bandit can help identify known vulnerabilities and insecure code patterns, respectively. It’s also important to audit package dependencies since indirect dependencies can introduce risks. Pinning package versions in a requirements file helps ensure consistent and secure deployments.