WordPress Security Guide

Protect your WordPress website from hackers, malware, and security threats with our comprehensive security guide.

WordPress powers 43% of all websites, making it a prime target for hackers. However, WordPress itself is secure - most breaches occur due to poor security practices. This guide will show you how to properly secure your WordPress site.

Why WordPress Security Matters

A hacked website can lead to:

  • Data Theft: Customer information, passwords, and financial data stolen
  • SEO Damage: Google blacklists hacked sites, destroying your rankings
  • Revenue Loss: Downtime means lost sales and customers
  • Reputation Damage: Loss of customer trust is hard to recover
  • Legal Issues: GDPR and data protection law violations

1. Keep WordPress Updated

WordPress releases security updates regularly. Running outdated versions leaves you vulnerable.

What to Update:

  • WordPress Core: Update to latest version immediately when released
  • Themes: Keep your theme updated (check for updates weekly)
  • Plugins: Update all plugins regularly
  • PHP Version: Use latest stable PHP version (8.1+)
Taiwan Web Hosting can enable automatic WordPress updates for you. Contact support or enable in WordPress → Dashboard → Updates.

2. Use Strong Passwords & 2FA

Weak passwords are the #1 cause of WordPress hacks. 80% of breaches involve stolen or weak passwords.

Password Best Practices:

  • Minimum 12 characters long
  • Mix of uppercase, lowercase, numbers, and symbols
  • Never reuse passwords across sites
  • Use a password manager (1Password, LastPass, Bitwarden)
  • Change passwords every 90 days

Enable Two-Factor Authentication:

Add an extra layer of security with 2FA plugins:

  • Wordfence Login Security (Free)
  • Two Factor Authentication (Free)
  • Google Authenticator (Free)

3. Install a Security Plugin

Security plugins provide firewall protection, malware scanning, and brute force protection.

Top Security Plugins:

Wordfence Security (Recommended)

Free plugin with:

  • Firewall and malware scanner
  • Real-time threat defense
  • Login security & 2FA
  • Security activity monitoring

Sucuri Security

Free & Premium options:

  • Security activity auditing
  • File integrity monitoring
  • Remote malware scanning
  • Blacklist monitoring

iThemes Security

Comprehensive security suite:

  • 30+ ways to secure WordPress
  • Brute force protection
  • File change detection
  • Strong password enforcement

4. Secure Your Login Page

The login page (/wp-admin) is the #1 target for hackers. Protect it with these measures:

Login Security Measures:

  • Change Login URL: Move from /wp-admin to custom URL
  • Limit Login Attempts: Block IPs after 3-5 failed attempts
  • Add CAPTCHA: Prevent automated bot attacks
  • Disable XML-RPC: Common attack vector (if not needed)
  • Whitelist IP Addresses: Only allow specific IPs to access admin

5. Use SSL Certificate (HTTPS)

SSL encrypts data between your server and visitors' browsers, protecting sensitive information.

Taiwan Web Hosting provides free SSL certificates via Let's Encrypt. Learn how to set up SSL on WordPress.

6. Regular Backups

Backups are your safety net. If hacked, you can restore your site quickly.

Backup Best Practices:

  • Daily automated backups
  • Store backups off-site (cloud storage)
  • Keep multiple backup versions (30 days minimum)
  • Test restores regularly
  • Include database and files

Taiwan Web Hosting provides automatic daily backups. For additional protection, see our backup solutions guide.

7. Harden wp-config.php

Add these security measures to your wp-config.php file:

Disable File Editing:

define('DISALLOW_FILE_EDIT', true);

Force SSL for Admin:

define('FORCE_SSL_ADMIN', true);

Change Security Keys:

Generate new keys at: https://api.wordpress.org/secret-key/1.1/salt/

8. Secure File Permissions

Incorrect file permissions allow unauthorized access. Use these recommended permissions:

  • Directories: 755 or 750
  • Files: 644 or 640
  • wp-config.php: 440 or 400

9. Disable Directory Browsing

Add this to your .htaccess file to prevent directory listing:

Options -Indexes

10. Remove WordPress Version Number

Hiding your WordPress version makes it harder for hackers to exploit known vulnerabilities.

Add this to your theme's functions.php:

remove_action('wp_head', 'wp_generator');

11. Change Database Table Prefix

Default "wp_" prefix makes SQL injection attacks easier. Change it to something unique during installation or use plugins like iThemes Security to change it later.

12. Disable XML-RPC (If Not Needed)

XML-RPC is rarely used but frequently exploited. Disable it by adding to .htaccess:

<Files xmlrpc.php>
order deny,allow
deny from all
</Files>

13. Monitor User Activity

Track who does what on your WordPress site:

  • Use Activity Log plugins (WP Activity Log, Simple History)
  • Monitor failed login attempts
  • Track file changes
  • Review user roles and permissions regularly

14. Remove Unused Themes & Plugins

Inactive themes and plugins are security risks. Delete anything you're not using:

  1. Go to Appearance → Themes
  2. Delete all themes except active theme and one default theme
  3. Go to Plugins → Installed Plugins
  4. Deactivate and delete unused plugins

15. Use a Web Application Firewall (WAF)

A WAF filters malicious traffic before it reaches your site:

  • Cloudflare: Free WAF with DDoS protection
  • Sucuri Firewall: Premium cloud-based WAF ($199/year)
  • Wordfence: WordPress-level firewall (free)

What to Do If Hacked

If your site is compromised:

  1. Stay Calm: Don't panic, most hacks are fixable
  2. Take Site Offline: Enable maintenance mode
  3. Contact Hosting: Taiwan Web Hosting provides free malware removal
  4. Scan for Malware: Use Wordfence or Sucuri scanner
  5. Review User Accounts: Delete suspicious users
  6. Change All Passwords: Including database, FTP, hosting
  7. Restore from Backup: If malware is extensive
  8. Check Google Search Console: Request review if blacklisted

Security Checklist

  • ☐ WordPress, themes, and plugins updated
  • ☐ Strong admin password (12+ characters)
  • ☐ Two-factor authentication enabled
  • ☐ Security plugin installed (Wordfence)
  • ☐ SSL certificate active (HTTPS)
  • ☐ Daily backups configured
  • ☐ Login attempts limited
  • ☐ wp-config.php hardened
  • ☐ File permissions correct (755/644)
  • ☐ Database prefix changed from wp_
  • ☐ XML-RPC disabled (if not needed)
  • ☐ Unused themes/plugins removed
  • ☐ WAF enabled (Cloudflare)
  • ☐ Activity monitoring active

Taiwan Web Hosting Security Features

All Taiwan Web Hosting plans include:

  • Free SSL certificates
  • Daily automatic backups
  • Malware scanning
  • DDoS protection
  • Firewall protection
  • 24/7 security monitoring
  • Free malware removal
Related Guide

Learn how to set up SSL certificate for WordPress.

SSL Setup →
Backup Solutions

Protect your site with proper backup strategies.

Backup Guide →

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