WordPress powers 43% of all websites on the internet, making it the #1 target for hackers. In 2025 alone, over 90,000 attacks were attempted on WordPress sites every minute. The good news? Most attacks exploit known vulnerabilities that are easy to prevent.
This comprehensive checklist will help you secure your WordPress site against the most common threats.
🔐 Essential Security Checklist
1. Keep Everything Updated
52% of WordPress vulnerabilities come from plugins. Enable auto-updates for minor releases:
- WordPress Core - Enable automatic updates
- Plugins - Review and update weekly minimum
- Themes - Update immediately when available
- PHP Version - Use PHP 8.1 or higher
⚠️ Warning: Never update on a production site without a backup. Test updates on staging first when possible.
2. Secure Your Login
The wp-admin login page is constantly attacked. Protect it with multiple layers:
- Change login URL - Use a plugin to change /wp-admin to something unique
- Limit login attempts - Lock out after 3-5 failed attempts
- Two-factor authentication - Use an authenticator app, not SMS
- CAPTCHA - Add to login form to stop bots
- IP whitelisting - If you have a static IP, restrict admin access
3. Harden WordPress Configuration
Add these security measures to wp-config.php:
- Disable file editing:
define('DISALLOW_FILE_EDIT', true); - Change security keys regularly
- Move wp-config.php above web root if possible
- Set correct file permissions (644 for files, 755 for directories)
4. Install Security Plugins
A good security plugin provides:
- Firewall protection
- Malware scanning
- Login security
- Activity logging
- Security hardening
5. Regular Backups
Backups are your last line of defense. Follow the 3-2-1 rule:
- 3 copies of your data
- 2 different storage types
- 1 offsite backup
6. Monitor Your Site
You can't fix what you don't know is broken. Monitor for:
- File changes
- New admin users
- Failed login attempts
- Plugin installations
- Database changes
Scan Your WordPress Site Now
FixiWeb checks your WordPress security configuration and alerts you to vulnerabilities.
Start Free →Quick Reference: Security Headers
Add these headers to your .htaccess or server configuration:
- X-Content-Type-Options: nosniff
- X-Frame-Options: SAMEORIGIN
- X-XSS-Protection: 1; mode=block
- Strict-Transport-Security: max-age=31536000
- Content-Security-Policy: (customize for your site)
If You Get Hacked
Don't panic. Follow these steps:
- Take the site offline immediately
- Change all passwords (WordPress, hosting, FTP, database)
- Restore from a clean backup
- Scan for remaining malware
- Update everything
- Review and improve security measures
- Submit for Google review if flagged
Conclusion
WordPress security isn't a one-time task-it's an ongoing process. Schedule regular security audits, keep everything updated, and use monitoring tools to catch issues early. The time you invest in security now will save you countless hours of recovery later.