Security Optimizer – The All-In-One… vs Duo Two-Factor Authentication (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Security Optimizer – The All-In-One…
1.0M+ active installs
Free
Duo Two-Factor Authentication
3.0K+ active installs
Free
Quick Verdict
As of April 2026, Security Optimizer – The All-In-One… has a higher user rating (4.5/5 from 153 reviews) and leads in active installations (1.0M+ vs 3.0K+). Both are free WordPress plugins. Security Optimizer – The All-In-One… has accumulated 32M+ total downloads while Duo Two-Factor Authentication has 186K+.
Detailed Comparison
| Metric | Security Optimizer – The All-In-One… | Duo Two-Factor Authentication | |
|---|---|---|---|
| Rating | 4.5/5 | ◄ | 3.7/5 |
| Total Reviews | 153 | ◄ | 39 |
| Active Installs | 1.0M+ | ◄ | 3.0K+ |
| Total Downloads | 32M+ | ◄ | 186K+ |
| Support Resolution | 80% | N/A | |
| Last Updated | 4 days ago | ◄ | 10 months ago |
| First Released | 2021 | 2011 | |
| Age | 5 years | 15 years | |
| WP Requires | 4.7+ | 4.1+ | |
| PHP Requires | 7.0+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 1.6.0 | 2.5.7 |
Rating Breakdown
Security Optimizer – The All-In-One…
Duo Two-Factor Authentication
Download Trends
Over the past 30 days, Security Optimizer – The All-In-One… averaged approximately 12,307 daily downloads while Duo Two-Factor Authentication averaged 34.
Recent Reviews
Security Optimizer – The All-In-One… Reviews
Good Security Control
Installed it to improve my site security. The interface is simple, and most features work well. Had to tweak a few settings, but nothing complicated. Overall, pretty useful plugin. tnx devs. T
sgs_whitelist_wp_content custom filter doesn’t work
This plugin seems to be designed for SiteGround hosting only. I am using SiteGround, and the plugin works well except for the file whitelisting feature. I applied the sgs_whitelist_wp_content custom f
Horrible. Clashes with everything. Breaches GDPR
This plugin has caused nothing but endless problems. It clashes with Elementor and Papal payment plugins. Of course, all Siteground do is blame the other companies, as if their plugin is perfect. W
Duo Two-Factor Authentication Reviews
Extra Security
Love having this plugin because it adds an excellent layer of much needed security
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
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
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Frequently Asked Questions
Is Security Optimizer – The All-In-One… or Duo Two-Factor Authentication more popular?
Which has better ratings — Security Optimizer – The All-In-One… or Duo Two-Factor Authentication?
Are Security Optimizer – The All-In-One… and Duo Two-Factor Authentication free?
Which plugin has better support — Security Optimizer – The All-In-One… or Duo Two-Factor Authentication?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.