proofscan

The tool handles sensitive data (API keys, etc.) through a dedicated `secrets` module. On Windows, it leverages DPAPI for encryption. However, on non-Windows platforms (Linux, macOS), secrets are explicitly stated to be stored using a 'plain' provider, which is merely base64 encoded and *not encrypted*. This is a critical security vulnerability for users on those operating systems who expect secure storage. While the tool warns the user about this, it significantly impacts the security posture for a tool that purports to manage 'secure storage'. The `execSync` calls for DPAPI appear to be handled with input sanitization and `-EncodedCommand` to mitigate command injection risks. Export/import functionality uses robust cryptographic methods like scrypt and AES-256-GCM with timing-safe HMAC verification.