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XO Security vs Duo Two-Factor Authentication (2026)

Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.

XO Security

XO Security

5(11)

30K+ active installs

Free

Updated 3 months ago
View XO Security
VS
Duo Two-Factor Authentication

Duo Two-Factor Authentication

3.7(39)

3.0K+ active installs

Free

Updated 10 months ago
View Duo Two-Factor Authentication

Quick Verdict

As of April 2026, XO Security has a higher user rating (5/5 from 11 reviews) and leads in active installations (30K+ vs 3.0K+). Both are free WordPress plugins. XO Security has accumulated 353K+ total downloads while Duo Two-Factor Authentication has 186K+.

Detailed Comparison

Rating
5/5XO Security
◄
Duo Two-Factor Authentication3.7/5
Total Reviews
11XO Security
►
Duo Two-Factor Authentication39
Active Installs
30K+XO Security
◄
Duo Two-Factor Authentication3.0K+
Total Downloads
353K+XO Security
◄
Duo Two-Factor Authentication186K+
Support Resolution
N/AXO Security
Duo Two-Factor AuthenticationN/A
Last Updated
3 months agoXO Security
◄
Duo Two-Factor Authentication10 months ago
First Released
2016XO Security
Duo Two-Factor Authentication2011
Age
10 yearsXO Security
Duo Two-Factor Authentication15 years
WP Requires
4.9+XO Security
Duo Two-Factor Authentication4.1+
PHP Requires
5.6+XO Security
Duo Two-Factor Authenticationfalse+
Business Model
FreeXO Security
Duo Two-Factor AuthenticationFree
Latest Version
3.10.8XO Security
Duo Two-Factor Authentication2.5.7

Rating Breakdown

XO Security

5/5(11 reviews)
5
100%
4
0%
3
0%
2
0%
1
0%

Duo Two-Factor Authentication

3.7/5(39 reviews)
5
62%
4
5%
3
3%
2
3%
1
28%

Recent Reviews

XO Security Reviews

by imawc

Awesome!

This plugin is lightweight and easy to use, so I recommend it.

by まーちゅう

What a great plugin!

It’s my top recommendation for security plugins on WordPress sites.It includes all the security features I need.

by altmmc

基本的なセキュリティ機能が揃っています

タイトル通りです。AIOS等の定番プラグインと比べると機能は少ないですが、必要最低限の対策が揃っており設定が非常にわかりやすいので使いやすいです。これだけでは不安という人はBBQ Firewallを併用すると良いです。

Duo Two-Factor Authentication Reviews

by dsitechmktg

Extra Security

Love having this plugin because it adds an excellent layer of much needed security

by ChrisKnight

Death by bit rot.

This used to be an awesome plugin. It offered seamless integration with Duo, blocking admin access to my site in the case of a password compromise or brute force attack. Sadly, it recently just st

by sotte

No updates for half a year, no PHP 8. Too bad

Best 2FA addon for WordPress – if it wasn’t so neglected. No updates for half a year, no PHP 8. Too bad. Could have been so great. Now it’s out. This topic was modified 3 years, 3 months ago b

Frequently Asked Questions

Is XO Security or Duo Two-Factor Authentication more popular?
XO Security has 30K+ active installations while Duo Two-Factor Authentication has 3.0K+. XO Security is the more widely-used plugin as of April 2026.
Which has better ratings — XO Security or Duo Two-Factor Authentication?
XO Security has a 5/5 rating from 11 reviews, while Duo Two-Factor Authentication has a 3.7/5 rating from 39 reviews.
Are XO Security and Duo Two-Factor Authentication free?
XO Security is free and Duo Two-Factor Authentication is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — XO Security or Duo Two-Factor Authentication?
Support resolution data is not available for all plugins. Check each plugin's WordPress.org support forum for current response quality.
Which plugin is updated more frequently?
XO Security was last updated 3 months ago and Duo Two-Factor Authentication was last updated 10 months ago.

Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.