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Defender Security

WordPress security plugin with malware scanner, IP blocking, audit logs, antivirus scans, firewall, 2FA, brute force login security, and more.

Defender Security

The facts

Rating
4.8★ from 334
Active installs
80k+
Price
Free
Last updated
24 Aug 2026
Added
Jun 2017
Requires WP
6.4
Tested up to
WP 7.1
Requires PHP
8.0.0
Downloads
4,260,437

Our analysis

AI-assisted

Defender Security is a WordPress plugin designed to enhance the security of your website. It provides tools such as a malware scanner, firewall, and two-factor authentication to protect against hackers and malware without requiring extensive technical knowledge.

The plugin performs on-demand scans to identify suspicious files and vulnerabilities, blocks harmful IPs using a global firewall, and offers easy setup for users. It is suitable for individuals or businesses looking to secure their WordPress sites from potential threats.

Best for: This plugin is suitable for WordPress site owners seeking to improve their website security without needing technical expertise.

What it does well

  • Offers a comprehensive malware scanner
  • Includes a global firewall to block harmful IPs
  • User-friendly setup with one-click hardening
  • Provides clear reports on security status
  • Supports two-factor authentication

Where it falls short

  • Limited information on specific features and configurations

Verdict

Defender Security provides essential security features for WordPress users, making it a practical choice for those wanting to safeguard their sites easily.

From the developer

WPMU DEV - Your All-in-One WordPress Platform's own description of Defender Security, lightly tidied.

Keep your sites safe from hackers, brute force attacks and malware with Defender, your easy-to-set-up, enterprise-level security plugin. With Defender, you can rely on the protection of a firewall, one-click hardening and 2FA, without having to be a cybersecurity expert.

As hackers continue to evolve, you know you need to stay on top of your site’s security. But you don’t have the time to learn to code, stay abreast of every emerging threat, or apply complicated technical settings.

Defender is here to give you the powerful security tools you need, without the technical headaches. Trusted by over 1 million WordPress users, this plugin works immediately with no confusing setup. Just activate Defender and let it handle the rest!

Trusted by 1+ Million Sites | 4.8/5 Star Rating

Defender makes it easy to:

  • Run on-demand malware scans to find suspicious files and code
  • Block malicious IPs with a global firewall
  • Enforce strong passwords, 2FA, and login limits
  • Apply recommended hardening settings in one click
  • Get clear reports that show what needs attention
  • Protect against compromised passwords before they are used on your site

Free Malware Scanner: Stop security threats before they harm your site

If your site has been infected by malware, this malicious code can cause a lot of damage before you even realize it’s there. Hackers use malware, often hidden in themes, extensions and plugins, to steal personal data, encrypt files for ransom, or spy on your activity.

Defender gives you a highly-effective yet easy-to-use malware scanner that runs deep diagnostics across your entire site, making sure no malware is lurking in the shadows.

Defender will scan your site for:

  • Files that have changed unexpectedly: The scan will compare all core files and extensions against the official WordPress repository and flag any modifications or rogue additions instantly.
  • Known vulnerabilities: Defender will check verified exploit registries to catch any security gaps in your active themes, plugins and core version, and help you fix them before they can be targeted.
  • Suspicious code: By continually checking your server files, Defender will spot any potential code injections or backdoors, a common way bad actors try to gain access to your site.
  • Outdated & removed plugins: Plugins that have been delisted from the repository or have not been updated in over two years become a significant risk to your site’s integrity. Defender flags these weak spots before they can cause a problem.

AntiBot Global Firewall: Block harmful IPs with data from over 750,000 sites

Put the collective threat intelligence of a massive network to work for your site. Powered by real-time threat data from over 750,000+ sites, the free AntiBot Global Firewall automatically blocks harmful traffic and spam bots with a single click.

When any site on our network flags a threat, all other sites get protected too. It’s like having a bouncer for your website. If an IP is on the blocklist (updated every 12 hours), they’re not getting in!

The most important part is, you’ll be in complete control.

  • User-friendly setup: Defender Pro gives you AntiBot on every site you connect, regardless of where they’re hosted. Just flip the switch and it’ll start working so efficiently you won’t even notice it’s there.
  • Choose your security level: Basic Mode offers balanced, everyday protection, while Strict Mode offers tighter security that blocks even the slightest suspicious activity.
  • Manage IPs in The Hub: Manually block specific IPs, apply blocklists and allowlists across all sites, implement Geo IP blocking and configure everything from one central dashboard.

Read the full description on the official page →

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