This plugin integrates Google Authenticator's two-factor authentication (2FA) into a popular content management system's login process. It is designed for site administrators and users who want to significantly improve account security by requiring a second verification factor.

• Two-Factor Authentication Setup: Administrators can enable 2FA on a per-user basis through the user management interface, requiring a one-time code from the Google Authenticator app in addition to a password.
• QR Code Enrollment: The plugin generates a unique QR code for each user, which can be scanned by the Google Authenticator mobile app to quickly and securely set up the account.
• Backward-Compatible Login: For convenience, users retain the ability to log in using their traditional password alone, providing flexibility while encouraging stronger security practices.
• Time-Based One-Time Passwords: It uses the TOTP algorithm to generate codes that expire after a short period, protecting against replay attacks if a code is intercepted.
• Lightweight Implementation: The plugin is designed to be simple and focused, adding essential 2FA functionality without unnecessary features that could impact site performance.