Google Authenticator is a mobile authentication application that offers two-factor authentication (2FA) services. It leverages the Time-based One-Time Password Algorithm (TOTP) and HMAC-based One-Time Password (HOTP) algorithm to verify a user’s identity for software applications. By generating a distinct six-digit password that refreshes every 30 seconds, the application adds an extra layer of security. Users need to enter this password in conjunction with their regular login credentials. Google Authenticator enhances security measures by safeguarding against unauthorized access to applications on mobile devices or web browsers. Many cryptocurrency exchanges utilize it as an additional security measure for customer logins.