rathsh

<p><strong>Rat Two-Factor Authentication</strong> is a lightweight yet powerful security plugin that adds an extra layer of protection to your WordPress site through email-based One-Time Password (OTP) verification.</p>
<h4>Key Features</h4>
<ul>
<li><strong>Email-based OTP verification</strong> – Secure 6-digit codes sent to user’s email</li>
<li><strong>Lightweight and fast</strong> – Minimal impact on site performance</li>
<li><strong>User-friendly interface</strong> – Clean, responsive design that works on all devices</li>
<li><strong>Flexible settings</strong> – Enable 2FA globally or per user</li>
<li><strong>Role-based requirements</strong> – Require 2FA for specific user roles</li>
<li><strong>Session management</strong> – Secure session handling with timeout protection</li>
<li><strong>AJAX-powered</strong> – Smooth user experience without page reloads</li>
<li><strong>Auto-submit functionality</strong> – Automatically submits form when 6 digits are entered</li>
<li><strong>Resend functionality</strong> – Users can request new codes with cooldown protection</li>
<li><strong>Mobile-friendly</strong> – Optimized for mobile login experiences</li>
<li><strong>Security-first</strong> – Nonce protection, input sanitization, and secure coding practices</li>
</ul>
<h4>How It Works</h4>
<ol>
<li>User enters their username and password normally</li>
<li>If 2FA is enabled, they’re redirected to an OTP verification screen</li>
<li>A 6-digit code is sent to their registered email address</li>
<li>User enters the code to complete login</li>
<li>Code expires after 10 minutes for security</li>
</ol>
<h4>Perfect For</h4>
<ul>
<li><strong>Business websites</strong> requiring enhanced security</li>
<li><strong>E-commerce stores</strong> protecting customer accounts</li>
<li><strong>Membership sites</strong> with sensitive user data</li>
<li><strong>Multi-author blogs</strong> securing contributor access</li>
<li><strong>Any WordPress site</strong> wanting better login security</li>
</ul>
<h4>Admin Features</h4>
<ul>
<li><strong>Global 2FA setting</strong> – Enable for all users</li>
<li><strong>Force 2FA option</strong> – Make it mandatory for selected roles</li>
<li><strong>Role-based configuration</strong> – Choose which roles require 2FA</li>
<li><strong>User profile integration</strong> – Users can enable/disable 2FA individually</li>
<li><strong>Clean admin interface</strong> – Easy to configure and manage</li>
</ul>
<h4>Developer Friendly</h4>
<ul>
<li><strong>Well-documented code</strong> with inline comments</li>
<li><strong>WordPress coding standards</strong> compliant</li>
<li><strong>Hook system</strong> for customization</li>
<li><strong>Lightweight codebase</strong> for easy modification</li>
<li><strong>No external dependencies</strong> – Pure WordPress integration</li>
</ul>
<h4>Security Features</h4>
<ul>
<li><strong>Nonce verification</strong> for all AJAX requests</li>
<li><strong>Input sanitization</strong> and validation</li>
<li><strong>Secure OTP generation</strong> using WordPress built-in functions</li>
<li><strong>Session timeout</strong> protection (10 minutes)</li>
<li><strong>Rate limiting</strong> on resend requests</li>
<li><strong>No plain text storage</strong> of OTP codes</li>
</ul>
<h3>Configuration</h3>
<h4>Global Settings</h4>
<p>Navigate to <strong>Settings > Two-Factor Auth</strong> to configure:</p>
<ul>
<li><strong>Enable 2FA Globally</strong>: Turn on 2FA for all users</li>
<li><strong>Force 2FA for All Users</strong>: Make 2FA mandatory regardless of user preference</li>
<li><strong>Required User Roles</strong>: Select specific roles that must use 2FA</li>
</ul>
<h4>User Settings</h4>
<p>Each user can enable/disable 2FA in their profile:</p>
<ol>
<li>Go to <strong>Users > Profile</strong> (or <strong>Users > Your Profile</strong>)</li>
<li>Find the “Two-Factor Authentication” section</li>
<li>Check “Enable 2FA” to activate for that user</li>
<li>Save the profile</li>
</ol>
<h4>Email Configuration</h4>
<p>The plugin uses WordPress’s built-in <code>wp_mail()</code> function. Ensure your site can send emails properly. Consider using:</p>
<ul>
<li>SMTP plugins for reliable email delivery</li>
<li>Email services like SendGrid, Mailgun, or Amazon SES</li>
<li>Proper SPF/DKIM records for your domain</li>
</ul>
<h3>Support</h3>
<p>For support, feature requests, or bug reports:</p>
<ul>
<li><strong>Plugin Support</strong>: <a href="https://wordpress.org/support/plugin/rat-two-factor-authentication" rel="ugc">WordPress.org Support Forum</a></li>
<li><strong>Documentation</strong>: Available in the plugin’s admin area</li>
<li><strong>Bug Reports</strong>: Please provide detailed information about your setup</li>
</ul>
<h3>Contributing</h3>
<p>We welcome contributions! The plugin follows WordPress coding standards and best practices.</p>
<h3>Privacy Policy</h3>
<p>This plugin:<br />
* Stores minimal user data (2FA preference and temporary OTP hashes)<br />
* Does not send data to external services<br />
* Uses WordPress’s built-in email system<br />
* Follows WordPress privacy guidelines<br />
* Allows data export/erasure as per GDPR requirements</p>
<h3>Technical Requirements</h3>
<ul>
<li>WordPress 5.0 or higher</li>
<li>PHP 7.4 or higher</li>
<li>MySQL 5.6 or higher (or equivalent MariaDB)</li>
<li>Ability to send emails from WordPress</li>
<li>Modern web browser with JavaScript enabled</li>
</ul>
<h3>Credits</h3>
<p>Developed with ❤️ by the Rat Plugins team, focused on creating lightweight, powerful, and user-friendly WordPress plugins.</p>
<h3>License</h3>
<p>This plugin is licensed under the GPL v2 or later.</p>
<blockquote>
<p>This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.</p>
<p>This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.</p>
</blockquote>


Rat Two-Factor Authentication

Lightweight and powerful Two-Factor Authentication plugin for WordPress with email-based OTP verification.

Aaron D. Campbell

George Stephanis

Scott Grant

Stephen Edgar

Steve Grunwell

Steven Word

Daisuke Takahashi

John Blackbourn

Kaspars

Derek Herman

Arslan Kalwar

Ali Husnain

<p>Use the “Two-Factor Options” section under “Users” <span aria-hidden="true" class="wp-exclude-emoji">→</span> “Your Profile” to enable and configure one or multiple two-factor authentication providers for your account:</p>
<ul>
<li>Email codes</li>
<li>Time Based One-Time Passwords (TOTP)</li>
<li>FIDO Universal 2nd Factor (U2F)</li>
<li>Backup Codes</li>
<li>Dummy Method (only for testing purposes)</li>
</ul>
<p>For more history, see <a href="https://georgestephanis.wordpress.com/2013/08/14/two-cents-on-two-factor/" rel="nofollow ugc">this post</a>.</p>
<h4>Actions & Filters</h4>
<p>Here is a list of action and filter hooks provided by the plugin:</p>
<ul>
<li><code>two_factor_providers</code> filter overrides the available two-factor providers such as email and time-based one-time passwords. Array values are PHP classnames of the two-factor providers.</li>
<li><code>two_factor_providers_for_user</code> filter overrides the available two-factor providers for a specific user. Array values are instances of provider classes and the user object <code>WP_User</code> is available as the second argument.</li>
<li><code>two_factor_enabled_providers_for_user</code> filter overrides the list of two-factor providers enabled for a user. First argument is an array of enabled provider classnames as values, the second argument is the user ID.</li>
<li><code>two_factor_user_authenticated</code> action which receives the logged in <code>WP_User</code> object as the first argument for determining the logged in user right after the authentication workflow.</li>
<li><code>two_factor_user_api_login_enable</code> filter restricts authentication for REST API and XML-RPC to application passwords only. Provides the user ID as the second argument.</li>
<li><code>two_factor_email_token_ttl</code> filter overrides the time interval in seconds that an email token is considered after generation. Accepts the time in seconds as the first argument and the ID of the <code>WP_User</code> object being authenticated.</li>
<li><code>two_factor_email_token_length</code> filter overrides the default 8 character count for email tokens.</li>
<li><code>two_factor_backup_code_length</code> filter overrides the default 8 character count for backup codes. Providers the <code>WP_User</code> of the associated user as the second argument.</li>
</ul>


Two-Factor

The plugin is good, it works fine with the membership plugin.

Good Plugin, But need some improvements

The best to increase the security of your WordPress.

Great plugin


Works flawlessly! Easy UI for users to setup their 2FA, does not need much configuration if at all. And what I appericiate, does just one thing and does it good - instead of being packed with multiple more or less related functionalities.


My go-to plugin for 2FA!

Extremely safe and secure

Extremely Secure


As a contributor to the Two-Factor WordPress Plugin, I'm excited to present my review of this exceptional security solution. This plugin operates flawlessly, delivering a streamlined and user-friendly interface for configuring two-factor authentication (2FA) with minimal effort. One of the aspects I'm particularly fond of is its commitment to focusing on a single function while excelling at it, providing users with a reliable and efficient solution. In this review, I will delve deeper into the plugin's impressive features and highlight its effectiveness in enhancing WordPress security.



Impressive Simplicity: The Two-Factor WordPress Plugin truly shines in its simplicity. Configuring 2FA is a breeze, thanks to its straightforward and intuitive interface. Even users with minimal technical knowledge can easily set up the plugin without any hassle. By focusing on the core functionality of two-factor authentication, the plugin avoids overwhelming users with unnecessary features, ensuring a smooth and uncomplicated experience.



User-Centric Design: The plugin's user-centric design is a testament to its effectiveness. It prioritizes the needs and preferences of users, providing them with a seamless and efficient 2FA setup process. Whether users opt for time-based one-time passwords (TOTP), QR code scanning, or other authentication methods, the plugin caters to their diverse requirements, enhancing security without compromising convenience. The straightforward configuration options empower users to strengthen their WordPress logins with just a few clicks.



Contributor Involvement: As a proud contributor to the Two-Factor WordPress Plugin, I'm grateful for the opportunity to be part of a project that prioritizes user security. Collaborating with the dedicated development team has been an enriching experience, and I've witnessed firsthand their commitment to excellence and attention to detail. Contributing to this plugin has allowed me to play a role in providing users with a reliable and effective security solution for their WordPress websites.



Conclusion: In conclusion, the Two-Factor WordPress Plugin stands out as a remarkable tool for enhancing WordPress security. Its flawless performance, coupled with a user-friendly interface, makes it a top choice for configuring two-factor authentication with ease. The plugin's simplicity is commendable, offering users a focused and streamlined solution without overwhelming them with unnecessary features. As a contributor to this exceptional project, I take great pride in recommending the Two-Factor WordPress Plugin to WordPress users who value simplicity, security, and reliability.


Streamlined and Effective


This plugin functions flawlessly! It provides users with a straightforward and straightforward interface for configuring two-factor authentication (2FA), requiring minimal configuration, if any. What I appreciate most is that it focuses on doing one thing exceptionally well, as opposed to overwhelming users with a multiplicity of unrelated features.


Two-Factor plugin functions flawlessly!


The installation was easy. No problems so far.


Works like expected


Easy to set up, easy to use. Works like a charm. Thanks a lot!


Just works!

Works out of the box

Very good plugin

Enable Two-Factor Authentication (2FA) using time-based one-time passwords (TOTP), Universal 2nd Factor (U2F), email, and backup verification codes.

Rat Two-Factor Authentication vs Two-Factor