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Defender Security - Malware Scanner, Login Security & Firewall

开发者 WPMUDEV
更新时间 2026年11月9日 18:55
PHP版本: 8.0.0 及以上
WordPress版本: 7.1.1
版权: GPL v2 - http://www.gnu.org/licenses/old-licenses/gpl-2.0.html

标签

security login security firewall malware malware scanner

下载

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详情介绍:

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: 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: 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. Want to see AntiBot in action? You can click here to get a real-time look at the malicious IPs and suspicious requests it's detected and blocked in the last 24 hours. Firewall Security & IP Management: Take control over your site's traffic Defender's advanced Web Application Firewall (WAF) makes it easy to lock out hackers, scrapers, and malicious bots without touching a single line of code. Login Security & 2FA: Prevent unauthorized access Make sure the only users logging into your WordPress site are the ones you actually want. Defender can protect your sites from unauthorized access or brute force attacks with sophisticated login security features. These features keep your site safe from malicious logins, while still ensuring legitimate users can log in easily. Security Hardening: Apply recommended settings with a single click WordPress security hardening is all about adding multiple layers of protection to your website, to reduce your risk of attacks and unauthorized access. Defender makes it easy to do this, with 12 recommended hardening settings you can apply with one click. For example, Defender's hardening settings include: Automated Defenses: Protect your entire site, on autopilot You've got a lot to handle while running your business, wouldn't it be nice if security was something you could set and forget? Learn more about Defender Pro. With Defender, you can put your security on autopilot. It'll be working around the clock with hands-off, automated defenses that run seamlessly in the background to keep intruders out and your data safe. Here's what Defender will be doing while you work on other things: Why choose Defender? There are plenty of WordPress security plugins out there, but many make it needlessly complicated to protect your site. Defender keeps the essentials simple. You can scan for malware, block harmful traffic, strengthen login security, and harden your site from one plugin, without digging through confusing technical options. It's built specifically for WordPress, trusted across the WPMU DEV ecosystem, and designed to help you protect your site without slowing down your work. With Defender, you get: So you get serious WordPress security, without the overwhelming setup. Built for speed and security A security plugin should protect your site without getting in the way. Defender is built to stop threats before they waste your server resources, with lightweight protection that runs quietly in the background. With Defender, you can: So you get the security your site needs, without making visitors wait for it. Works with your existing setup You shouldn't have to change your plugins, tools or workflow just to secure your site. Defender works smoothly with your current WordPress setup. With Defender, you can: So you get the security your site needs, without getting in the way of the plugins, tools, and workflows you already rely on. Get started in minutes Defender works as soon as you activate it. Install the plugin, run your first malware scan, enable your firewall, strengthen login security, and apply recommended hardening settings in just a few clicks. Defender shows you what needs attention, so you can lock down your site without editing code or guessing which settings matter. Just install Defender, switch on the protections you need, and let it handle the rest.

安装:

  1. Upload the wp-defender plugin to your /wp-content/plugins/ directory.
  2. Activate the plugin through the 'Plugins' menu in WordPress.
  3. Configure and manage using the defender menu item in the WordPress dashboard.
  4. Done!

屏幕截图:

  • Monitor site security status, active threats, firewall, and scan recommendations at a glance.
  • Automatically block malicious IPs and safeguard your site against automated attacks.
  • One-click security tweaks like disabling XML-RPC and hiding login URLs to lock down your site.
  • Set up reCAPTCHA or Cloudflare Turnstile to prevent spam and brute-force logins.

常见问题:

Why should I choose Defender over other security plugins?

Defender is built to add all the best hardening and website security recommendations used by the pros without having to become a security expert. This means you get all the most effective and proven protection methods other services provide with fewer settings, one-click hardening and faster setup.

Is installing Defender the only step I need to take for better WordPress security?

Hackers and bot attacks are not the only security threats to your site. No matter what security plugin or service you use, always be prepared with a secure backup stored in a safe location away from your live site. Security does not protect from hosting outages, server errors and accidentally lost or damaged data. We recommend Snapshot. Defender with scheduled managed backups is the best way to keep your site safe.

Does Defender security protect against harmful bots?

Yes! Defender's Firewall gives you robust site protection and security by allowing you to block bad bot IPs and use geographical IP blocking

Can I use Defender with other security plugins?

You can. Just make sure not to enable the same security features in the third-party plugin that you also have enabled in Defender, as this might cause conflicts, such as malware scanners, firewall, and login security features.

Is Defender’s security compatible with WordPress Multisite?

Yes! All of Defender's security features are fully compatible with a multisite installation. It can be network enabled and managed from the network admin.

Does Defender offer spam protection and security?

Yes, Defender provides multiple layers of spam protection and security. A large percentage of Trackbacks and Pingbacks are spam, and Defender allows you to easily disable both to reduce spam and improve site security. Additionally, Defender includes the AntiBot Global Firewall, which blocks known malicious IPs and bots before they even reach your site, offering proactive protection against common attacks and spam bots.

Will my site be protected from DDoS attacks and similar security threats?

Yes. Defender's IP banning, IP lockout, and 404 detection security features can identify DDoS attacks and block bad IPs.

I've locked myself out of my admin panel, what can I do?

If you’re the administrator and you’ve been locked out due to multiple failed login attempts, Defender offers two options: Option #1: Use the “Unlock Me” feature: Click the Unlock Me button on the login page and enter your username or the email address linked to your site. You’ll receive an email with a secure link to unlock your account and regain access — no technical steps needed. Option #2: Use the manual method (if email doesn’t work): Add the following code to your theme’s functions.php file, located in the main directory of your active theme. add_filter( 'ip_lockout_default_whitelist_ip', function ( $ips ) { $ip = 'YOUR IP HERE'; $ips[] = $ip; return $ips; } ); Replace "YOUR IP HERE" with your actual IP address (you can use a tool like whatsmyip to find it.)

Help! I was already hacked. What should I do?

WPMU DEV's expert support can advise you on how to clean up your site if it's been hacked. Create a new thread in our support forum, or Defender Pro gives you access to 24/7 live support.

How can I report security issues or bugs?

We take plugin security incredibly seriously; if you have a bug or vulnerability to report, you can do so through the Patchstack Vulnerability Disclosure Program. It's fast, easy, and you will be notified when the issue is fixed. Report a vulnerability.

I have another question, where's the best place to get help with security?

Please open a new thread in Defender's support forum. Our support team is always happy to help!

更新日志:

6.4.1 ( 2026-11-05 ) 6.4.0 ( 2026-10-27 ) 6.3.0 ( 2026-09-22 ) 6.2.4 ( 2026-09-01 ) 6.2.3 ( 2026-08-31 ) 6.2.2 ( 2026-08-24 ) 6.2.1 ( 2026-08-20 ) 6.2.0 ( 2026-08-18 ) Changelog for previous versions.