Really Simple Security

Quick take

This Really Simple Security review starts with an important change: Really Simple Security is no longer just the plugin formerly known for switching WordPress to HTTPS. The current free plugin combines SSL migration, WordPress hardening, vulnerability detection, login protection, and email-based two-factor authentication. Really Simple Security Pro adds the more defensive layers I would expect from a broader security product, including a firewall, region blocking, security headers, advanced SSL controls, and additional vulnerability-management features.

I would choose the free version when the goal is to harden a WordPress site, enforce HTTPS correctly, monitor known vulnerabilities, and strengthen login security without deploying a heavier full-suite security stack. I would consider Pro when firewall controls and visitor-facing security headers are part of the requirement.

Best fit: Really Simple Security makes the most sense for WordPress sites that want lightweight hardening, SSL enforcement, vulnerability awareness, and login protection in one plugin. I would choose a different option for sites primarily looking for managed malware cleanup, deep incident response, or security controls already fully provided by hosting/CDN infrastructure.

What Really Simple Security protects in the free version

The current Really Simple Security Free plugin covers several separate layers. SSL tools can migrate a site to HTTPS, apply 301 redirects, enforce secure cookies, and help with certificate setup where the host supports manual Let’s Encrypt installation. WordPress hardening can disable or restrict common attack surfaces such as directory browsing, XML-RPC, user enumeration, code execution in uploads, and weak administrator usernames.

Vulnerability detection checks WordPress core, themes, and plugins for known vulnerabilities so administrators can take action when installed software becomes risky. Login protection adds role-based two-factor authentication using email codes and other controls designed to reduce account compromise.

Security features that matter operationally

Hardening is modular rather than all-or-nothing

The plugin’s security features are designed as modules, so disabled features should not load unnecessary code. That is useful when you want a smaller security footprint and prefer enabling only the protections appropriate for the site.

Vulnerability detection is about response, not malware cleanup

Known-vulnerability alerts help you identify software that needs an update, replacement, or other mitigation. I would not describe that as the same thing as a full malware-removal service. Really Simple Security’s role is primarily prevention, hardening, login security, SSL enforcement, and vulnerability management.

2FA is part of the free security layer

Really Simple Security can allow or enforce two-factor authentication for selected user roles. The current free implementation uses email verification codes. Version 9.8.1 also includes recent fixes around 2FA status, login nonces, and XML-RPC logins for users with 2FA enabled.

Pro adds the firewall and visitor-protection layer

Really Simple Security Pro adds firewall controls including IP and username blocking, 404 blocking, region blocking, automated firewall rules, and allowlists/blocklists. Pro also adds security headers intended to reduce browser-side risks such as clickjacking and other classes of web attack.

Advanced SSL controls stay relevant on older or complex sites

Pro includes a mixed-content scan and fixer plus HTTP Strict Transport Security controls. These are most useful when a site still has HTTP resources, complicated redirects, or a migration that needs more than a simple HTTPS switch.

Really Simple Security Free vs Pro

The Really Simple Security Free vs Pro decision should start with scope. Really Simple Security Free is a practical fit when you need HTTPS enforcement, WordPress hardening, vulnerability detection, and login protection with 2FA. Those features cover a meaningful baseline without requiring a paid license.

Really Simple Security Pro makes sense when the security plan also requires an application-layer firewall, country/region blocking, security headers, advanced mixed-content handling, HSTS controls, and premium support. I would not upgrade only because the site uses SSL. The free plugin already handles the core HTTPS migration and enforcement role.

Where the trade-offs show up

Security plugins can overlap. If your host, CDN, firewall service, or another WordPress security plugin is already enforcing login rules, headers, IP blocks, or HTTPS redirects, enabling duplicate protections without understanding the interaction can create lockouts or conflicting behavior.

Hardening controls also need context. Disabling XML-RPC or changing other WordPress defaults can affect integrations that rely on those endpoints. I would enable hardening measures deliberately rather than treating every available toggle as automatically appropriate.

Really Simple Security also should not be confused with a complete incident-response service. Vulnerability awareness and firewall protection reduce risk, but backups, update discipline, credential management, malware response, and hosting security remain separate parts of a complete WordPress security plan.

Really Simple Security pricing

Pricing checked September 9, 2026. Really Simple Security pricing currently starts with the Personal Pro license. Really Simple Security Pro currently shows Personal at $49/year for one site, discounted from $69/year; Professional at $99/year for five domains, discounted from $119/year; and Agency at $199/year for 25 domains, discounted from $209/year.

The vendor states that these discounts apply to the first year only. A 30-day refund period is currently offered.

PluginSuggest verdict

This Really Simple Security review supports a shortlist when you want a lightweight WordPress security layer that combines SSL enforcement, hardening, vulnerability detection, and login protection without starting with a large security suite.

As a WordPress security plugin, Pro is easier to justify when firewall and browser-facing security controls are part of the plan. If your main problem is malware cleanup or full incident response, I would choose a product built specifically around that job rather than stretching this plugin beyond its core strengths.

Really Simple Security FAQs