Lumina Authenticator operates strictly as a local-only, offline 2-step verification client. It does not collect, monitor, transmit, share, or sell any personal data, telemetry, or account configurations. All TOTP secret keys and configurations are encrypted and stored entirely on your local machine using the browser's native storage APIs.

The optional "Sync Clock with Google" feature only pings the Google Server purely to fetch the standard header timestamp and sends zero payload or tracking data.