Easily improve site security with WordPress Hardening, Two-Factor Authentication (2FA), Login Protection, Vuln...
Free
3M+ installs 4.9★ (8,862)
Duo Two-Factor Authentication
Easily add Duo Security two-factor authentication to your WordPress website. Enable two-factor authentication for your admins and/or users.
The facts
- Rating
- 3.7★ from 39
- Active installs
- 3k+
- Price
- Free
- Last updated
- 6 Jun 2025
- Added
- May 2011
- Requires WP
- 4.1
- Tested up to
- WP 6.0.14
- Downloads
- 192,397
Our analysis
AI-assistedDuo Two-Factor Authentication is a WordPress plugin that adds an extra layer of security to your website by enabling two-factor authentication. It allows users to verify their identities using their mobile phones or hardware tokens, reducing the risk of account takeover and data theft.
The plugin is easy to set up and does not require additional hardware or complicated software. You can enable two-factor authentication for various user roles, including admins and subscribers. However, support for the traditional Duo Prompt experience has ended, and users are encouraged to migrate to the new Duo Universal plugin.
Best for: This plugin suits WordPress site owners looking to improve account security with two-factor authentication.
What it does well
- ✓Provides two-factor authentication for enhanced security
- ✓Easy to set up without extra hardware
- ✓Multiple authentication methods available, including mobile app and SMS
- ✓Supports various user roles for authentication
Where it falls short
- •Support for the traditional Duo Prompt experience has ended
- •Encourages migration to a new plugin for continued support
Verdict
Duo Two-Factor Authentication offers a straightforward solution for enhancing security on WordPress sites, but users should be aware of the end of support for its traditional prompt experience.
From the developer
Duo Security's own description of Duo Two-Factor Authentication, lightly tidied.
Duo Security provides two-factor authentication as a service to protect against account takeover and data theft. Using the Duo plugin you can easily add Duo two-factor authentication to your WordPress website in just a few minutes!
Rather than relying on a password alone, which can be phished or guessed, Duo’s authentication service adds a second layer of security to your WordPress accounts. Duo enables your admins or users to verify their identities using something they have—like their mobile phone or a hardware token—which provides strong authentication and dramatically enhances account security.
Duo is easy to setup and use. With Duo there’s no extra hardware or complicated software to install, just sign up for Duo’s service and install the plugin. Then you can set which user roles you want to enable two-factor authentication for—admins, editors, authors, contributors, and/or subscribers—without setting up user accounts, directory synchronization, servers, or hardware.
When they log in, your users have multiple ways they can authenticate, including:
- One-tap authentication using Duo’s mobile app (our fastest, easiest way to authenticate)
- One-time passcodes generated by Duo’s mobile app (works even with no cell coverage)
- One-time passcodes delivered to any SMS-enabled phone (works even with no cell coverage)
- Phone callback to any phone (mobile or landline!)
- One-time passcodes generated by an OATH-compliant hardware token (if you’re feeling all old school)
Protect your WordPress website in minutes with Duo.
End of Support Notice
Support for the traditional Duo Prompt experience using the Duo WordPress plugin ended on September 30, 2024. Please use the new Duo Universal plugin for WordPress. Read more about the End of Suppport and migration to the new plugin on our Duo for WordPress – Duo Universal Prompt documentation page
Tagged as
quality
Security
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