Really Simple Security – Simple and Performant Security (formerly Really Simple SSL) for WordPress

Prevent login feedback and disable user enumeration

Disable XML-RPC

Disable directory browsing

Username restrictions (block ‘admin’ and public names)

and much more..

Vulnerability Detection Get notified when plugins, themes or WP core contain vulnerabilities and need appropriate action.

Login Protection Allow or enforce Two-Factor Authentication (2FA) for specific user roles. Users receive a two-factor code via Email.

Improve Security with Really Simple Security Pro Protect your site with all essential security features by upgrading to Really Simple Security Pro.

Advanced SSL enforcement

Mixed Content Scan & Fixer. Detect files that are requested over HTTP and fix them to HTTPS, both Front- and Back-end.

Enable HTTP Strict Transport Security and configure your site for the HSTS Preload list.

Firewall Really Simple Security Pro includes a performant and efficient WordPress firewall, to stop bots, crawlers and bad actors with IP and username blocks.

404 blocking – Blocks crawlers as they trigger unusual numbers of 404 errors.

Region blocking – Only allow/block access to your site from specific regions.

Automated and customisable Firewall rules.

IP blocklist and allowlist.

Security Headers Security headers protect your site visitors against the risk of clickjacking, cross-site-forgery attacks, stealing login credentials and malware.

Independent of your Server Configuration, works on Apache, LiteSpeed, NGINX, etc.

Protect your website visitors with X-XSS Protection, X-Content-Type-Options, X-Frame-Options, a Referrer Policy and CORS headers.

Automatically generate your WordPress-tailored Content Security Policy.

Vulnerability Measures When a vulnerability is detected in a plugin, theme or WordPress core you will get notified accordingly. With Vulnerability Measures, you can configure simple but effective measures to make sure that a critical vulnerability won’t remain unattended.

Force update: An update process will be tried multiple times until it can be assumed development of a theme or plugin is abandoned. You will be notified during these steps.

Quarantine: When a plugin or theme can’t be updated to solve a vulnerability, Really Simple Security can quarantine the plugin.

Advanced Site Hardening

Choose a custom login URL

Automated File Permissions check and fixer

Rename and randomize your database prefix

Change the debug.log file location to a non-public folder

Disable application passwords

Control admin creation

Disable HTTP methods, reducing HTTP requests

Login Protection Secure your website’s login process and user accounts with powerful security measures.

Two-Step verification (Email login)

2FA (two factor authentication) with TOTP

Passwordless login with passkey login

Enforce strong passwords and frequent password change

Limit Login Attempts

With Limit Login Attempts you can configure a threshold to temporarily or permanently block IP addresses or (non-existing) usernames. You can also throw a CAPTCHA after a failed login (hCaptcha or Google reCaptcha)

Access Control

Restrict access to your site for specific regions.

Add specific IP addresses or IP ranges to the Blocklist or Allowlist.

Useful Links

Documentation

Security Definitions

Translate Really Simple Security

Issues & pull requests

Feature requests

Love Really Simple Security? If you want to support the continuing development of this plugin, please consider buying Really Simple Security Pro, which includes some excellent security features and premium support.

About Really Simple Plugins Our mission is to make complex WordPress requirements really easy. Really Simple Security is developed by Really Simple Plugins.

For generating SSL certificates, Really Simple Security uses the le acme2 PHP Let’s Encrypt client library, thanks to ‘fbett’ for providing it. Vulnerability Detection uses WP Vulnerability, an open-source initiative by Javier Casares. Want to join as a collaborator? We’re on GitHub as well!