• The REINER SCT Authenticator mini is hardware for secure two-factor authentication (2FA) using a time-based one-time password (TOTP code). The REINER SCT Authenticator mini uses the built-in camera to quickly recognize the authentication data displayed by your account in the form of a QR code and assigns it to an account in the REINER SCT Authenticator mini. For secure login to an account, it generates a new TOTP code every 30 seconds.