Defender Security – Malware Scanner, Login Security & Firewall
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 Outdated & removed plugins: Plugins that have been delisted from the repository or have not been updated in over two years become a significant risk to your site’s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. 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. Advanced IP Lockouts: Manually block specific IPs, import custom blocklists, or set automated timed and permanent lockouts for repeat offenders. Geo IP Blocking: Instantly ban traffic from specific countries or geographic locations with a single click. User Agent Banning: Instantly block spam and scrapers using built-in bad bot presets. We automatically allowlist major search engines to protect your SEO. Malicious Bot Detector: Deploy layered defenses to trap aggressive bots that ignore your robots.txt rules and catch fake crawlers impersonating legitimate search engines. 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. Hide Login URL: Change the location of WordPress’s default login area, making it harder for automated bots to find and more convenient for your users. Session Security: Protect your site from session hijacking, preventing attackers from stealing session tokens to impersonate users and gain unauthorized access to your website. Smart Password Rules: Enforce strong passwords for new registrations, automatically block compromised credentials using a public “pwned” passwords database, limit login attempts so hackers can’t guess passwords, and force a site-wide password reset upon the next login if you suspect a security breach. Two-Factor Authentication (2FA): Add an extra layer of protection and security to your WordPress sites to prevent brute force attacks and login security vulnerabilities. Defender’s two-factor authentication (2FA) features include plenty of ways to verify logins, from mobile app verification (Google Authenticator, Authy) to Biometric Authentication (fingerprint/facial recognition) to Hardware Key Authentication (USB security keys.) Plus, built-in backup code generation, lost device emails and WooCommerce 2FA. 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: Disabling the file editor to stop internal tampering Updating outdated security keys Hiding PHP error reporting on the frontend Adding advanced security headers (XSS protection, Strict Transport, etc.) Disabling trackbacks and pingbacks to prevent spam 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: Performing scheduled scans for issues: Set up regular scans that look for malicious code, suspicious code injections, vulnerabilities, abandoned plugins, and missing hardening recommendations. Creating automated security reports: Stay informed with health updates and immediate threat summaries delivered directly to your inbox. Keeping audit logs: Defender logs key site activity — logins, user changes, plugin and theme updates, content edits, and settings changes — so you can track what happened and when. 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: Security trusted by over 1 million WordPress users Protection built specifically for WordPress vulnerabilities Regular updates and threat intelligence improvements Malware scanning, firewall protection, and login security in one plugin Support from the award-winning WPMU DEV team 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: Detect and limit 404 bots before they drain server resources Run malware scans without overloading your CPU Keep your site protected without adding performance drag 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: Protect WooCommerce, BuddyPress, and sites built with major page builders Apply saved security configs across multiple sites in a few clicks Enable and configure protection alongside your favorite plugins 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. About Us WPMU DEV is a premium supplier of quality WordPress plugins and themes. For premium support with any WordPress-related issues you can join us here: https://wpmudev.com/ Don’t forget to stay up to date on everything WordPress from the Internet’s number one resource: WPMU DEV Blog Hey, one more thing… we hope you enjoy our free offerings as much as we’ve loved making them for you!
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SiteFort Security – Malware Scanner, Firewall, Login Security & Hardening
SiteFort is a prevention-first WordPress security plugin that combines security hardening, firewall and bot protection, login security and 2FA, vulnerability scanning, and malware detection in one protection layer. It blocks common attack paths early, before they turn into compromises, while supported firewall rules can sync to Cloudflare for enforcement at the edge. SiteFort’s cloud-assisted malware scanner verifies trusted files by hash and sends only unknown or suspicious files for deep threat analysis, keeping scans reliable even on shared and lower-resource hosting. Security hardening, firewall protection, login security, 2FA, and vulnerability scanning are free forever. Try the Live Demo | Features | Try Online Scanner Core WordPress Security Features WordPress Security Hardening: Reduces common exposure through XML-RPC, user enumeration, sensitive files, direct PHP execution, REST access, security headers, and other WordPress security controls. Firewall & Bot Protection: Blocks vulnerability probes, abusive requests, malicious traffic, and unwanted automation with IP, country, rate limiting, and configurable bot controls. Supported rules can also sync to Cloudflare for edge enforcement. Login Security & 2FA: Protects WordPress login, WooCommerce customer accounts, and membership account access with two-factor authentication, CAPTCHA, brute-force lockouts, a custom login URL, breached-password checks, and password policies. Vulnerability Scanner: Checks WordPress core, plugins, and themes for known vulnerabilities, affected versions, severity, CVE references where available, and remediation guidance. Cloud-Assisted Malware Scanner: Detects backdoors, web shells, injected code, malicious redirects, SEO spam, and suspicious file changes, with deep threat analysis in the cloud to reduce server load. Compromise & Reputation Checks: Detects suspicious administrator accounts, injected content, unsafe URLs, exposed sensitive files, malicious redirects, and domain or server reputation issues. WordPress Security Hardening SiteFort provides simple, toggle-based WordPress hardening controls to reduce common security exposure and shrink the attack surface. Sensitive File Protection: Blocks public access to WordPress configuration backups, database dumps, debug logs, backup files, installer files, and other sensitive resources, including exposed .env or .git data when present. PHP Execution Protection: Blocks PHP execution in uploads and restricts direct access to PHP files in plugin and theme directories. XML-RPC Controls: Disable XML-RPC, restrict authentication, or block pingback abuse. User Enumeration Blocking: Reduces username exposure through author archives, REST endpoints, and common discovery paths. REST & Application Password Controls: Restricts REST API access and controls WordPress Application Passwords based on site requirements. File Editor Protection: Disables the built-in WordPress theme and plugin file editor. Directory Browsing Protection: Disables directory listing to reduce file discovery and unintended information exposure. Security Headers: Analyze and manage CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, and disclosure headers. Version & Metadata Cleanup: Reduces exposed WordPress version, generator, and header information. Protection Verification: Confirms supported hardening protections are active and identifies items that require manual hosting or server configuration. WordPress Malware Scanner SiteFort combines hash-first file verification with cloud-assisted deep threat analysis to detect malware while reducing scan workload on the WordPress server. Hash-First File Verification: Known WordPress core, plugin, and theme files are verified against trusted hashes. Deep Threat Analysis: Files that cannot be verified by hash or show suspicious indicators are sent to the SiteFort cloud for deep threat analysis, including backdoors, web shells, injected PHP or JavaScript, malicious redirects, SEO spam, and obfuscated code. File Integrity: Detects modified WordPress core, plugin, and theme files, along with unexpected files that do not belong in trusted packages. Account & Content Checks: Checks administrator accounts, WordPress content, options, URLs, and redirects for suspicious changes and indicators of compromise. Sensitive File Exposure: Identifies publicly accessible backups, logs, configuration files, debug files, and other sensitive files commonly targeted by attackers. Domain & IP Reputation: Checks the site domain and server IP against supported blocklists and abuse intelligence. Database and content checks run on the protected site and are not uploaded to the SiteFort cloud. Login Security & 2FA SiteFort protects WordPress login and account access against brute-force attacks, credential abuse, and unauthorized access. Brute-Force & CAPTCHA Protection: Limits repeated login attempts and adds CAPTCHA protection to WordPress, WooCommerce, and supported custom login and registration forms. Two-Factor Authentication: Adds role-based 2FA with authenticator apps, email codes, recovery codes, grace periods, and trusted devices. WooCommerce & Membership 2FA: Lets customers and members manage 2FA from WooCommerce My Account or supported custom account pages. Custom Login URL: Move the WordPress login page to a private URL and control requests to the default wp-login.php address. Password Security: Detects weak and breached passwords, enforces password strength, prevents reuse, and supports optional expiration policies. WordPress Firewall SiteFort filters malicious and abusive traffic early, with clear controls for IPs, countries, rate limits, sensitive paths, bots, and optional Cloudflare edge enforcement. IP, CIDR & Country Rules: Block or allow individual IP addresses, CIDR ranges, and countries, including an allow-only mode. Sensitive Path Probe Protection: Blocks requests probing for commonly targeted sensitive paths, including WordPress configuration backups, database dumps, debug logs, installer files, .env, and .git. Rate Limiting & 404 Controls: Reduces abusive request bursts, repeated missing-page requests, and automated scanning activity. Bot & User-Agent Controls: Block or allow selected bots, crawlers, scanners, and user agents with configurable firewall rules. Community Threat Intelligence: Blocks known malicious IPs identified across the SiteFort network, helping stop repeat bad actors before they reach the site. Vulnerability Probe Protection: Blocks automated requests searching for vulnerable plugins, themes, backup files, and configuration leaks. Cloudflare Sync: Synchronizes supported IP, country, and user-agent rules to Cloudflare, with temporary edge blocks for repeat attackers where supported. Traffic Log: Review firewall traffic, blocked requests, bot activity, rate-limit events, and rule matches from the firewall dashboard. Bot Protection Policy SiteFort provides three bot protection presets for straightforward setup, with the option to allow or block specific bots and crawlers individually. Basic: Blocks known hacking tools and bots probing for vulnerable files and common attack paths. Balanced: Adds protection against scraping bots and automated scripts. Recommended for most WordPress sites. Maximum: Extends filtering to unrecognized bot traffic for sites that require stricter automation controls. AI Training Crawlers: Optionally block training-focused crawlers such as GPTBot, ClaudeBot, CCBot, and Bytespider while supported AI assistants and AI search crawlers remain allowed. Supported search crawlers are verified using reverse DNS and published IP ranges and are allowed through bot protection, while bots impersonating known search engines are detected and blocked. Vulnerability Scanner SiteFort checks installed WordPress core, plugins, and themes against vulnerability intelligence and identifies affected versions, severity, and available remediation. Affected Components: Identifies vulnerable WordPress core, plugins, and themes with installed versions, severity, and CVE references where available. Fix Guidance: Shows fixed versions and recommended actions when remediation information is available. Vulnerability Probe Protection: Firewall controls block automated discovery attempts targeting vulnerable plugins, themes, and known component paths while affected software is being updated, replaced, or removed. SiteFort does not virtually patch vulnerable code. Vulnerable components should be updated, replaced, or removed using the available remediation guidance. Malware Repair & Quarantine Delete or Quarantine (Free): Remove malicious or unwanted files from scan results, with optional quarantine for recovery when needed. One-Click Repair (Pro): Repairs malicious or modified files directly from scan results when a trusted clean source is available. Clean-File Restore (Pro): Restores supported WordPress core, plugin, and theme files, including selected commercial plugins and themes when verified clean sources are available. For active WordPress compromises requiring hands-on investigation, Securewp expert cleanup is available for malware removal, root-cause remediation, blocklist assistance, and post-cleanup review. WordPress Security Audit Log SiteFort records important security and administrative activity, providing a clear history for review and investigation. Login Activity: Successful and failed logins, lockouts, 2FA events, and account-related activity. User Changes: User creation, updates, role changes, and other account actions. Plugin & Theme Activity: Installations, activations, deactivations, updates, and other recorded changes. Security & Settings Changes: Hardening, login security, firewall configuration, and other sensitive administrative changes. SiteFort Console SiteFort Console provides a central panel for managing security across multiple WordPress sites. No separate add-on is required; Console connectivity can be enabled or disabled directly from the SiteFort plugin. Run security scans and review findings across sites. Monitor vulnerabilities and update hardening settings remotely. Review security status, scan history, uptime, and SSL expiry. Route alerts and download reports for individual sites or clients. Manage team access and support workflows from one place. All site-level security features remain available directly in WordPress; Console adds centralized management for multiple sites. Hosting Compatibility SiteFort supports shared hosting, managed WordPress hosting, VPS, and dedicated servers across Apache, Nginx, and LiteSpeed. Cloudflare: Works with Cloudflare-proxied sites and supports optional firewall rule sync for edge enforcement. Lower-Resource Hosting: Hash-first file verification and cloud-assisted deep analysis reduce scan workload on the hosting server. Flexible Server Support: Does not require a specific web server stack or managed hosting environment. Free vs Pro SiteFort Free includes security hardening, firewall and bot protection, login security and 2FA, vulnerability scanning, activity logging, and 3,000 monthly cloud scan credits. Pro removes the cloud analysis limit and adds automation, repair, monitoring, alerts, and reporting. SiteFort Pro adds: Unlimited deep threat analysis Scheduled malware scans and automated vulnerability alerts One-click malware repair and clean-file restore Uptime and SSL expiry monitoring Slack, Discord, email, and webhook alerts Remote scan history and detailed security reports White-label options for agencies Managed adds hands-on monitoring, incident response workflows, and expert cleanup coverage from the Securewp team. See the WordPress Security Plugin Comparison for a feature-by-feature comparison with other WordPress security plugins. External services SiteFort uses external services only for features that require them, including license activation, cloud-assisted malware analysis, vulnerability and firewall intelligence, reputation checks, optional Console sync, CAPTCHA, GeoIP, Cloudflare Sync, and administrator-configured notifications. Optional integrations are not contacted unless they are enabled or used. SiteFort Cloud Servers: securewp.net, intel.securewp.net, console.securewp.net Used for: License activation, service metadata, cloud malware analysis, vulnerability intelligence, firewall intelligence, reputation checks, community blocklist sync, clean-file repair, and optional Console sync. Data sent: Email address, license key or token, site URL, WordPress and plugin versions, installed plugin and theme names and versions, file hashes, scan results, vulnerability findings, reputation status, firewall metadata, blocked IP addresses, and security configuration metadata. Malware scanning: File hashes are sent first. Only unknown or suspicious files may be uploaded for deeper analysis and are deleted after processing. Database and content checks run on the protected site and are not uploaded to the SiteFort cloud. If wp-config.php requires analysis, sensitive configuration values are removed before upload. Temporary storage: SiteFort Cloud may return temporary *.amazonaws.com upload or download URLs for malware analysis or clean-file repair. Privacy: https://securewp.net/privacy-policy/ Terms: https://securewp.net/terms-and-conditions/ Storage provider policies: AWS privacy https://aws.amazon.com/privacy/ and terms https://aws.amazon.com/service-terms/; Cloudflare privacy https://www.cloudflare.com/privacypolicy/ and terms https://www.cloudflare.com/website-terms/ Optional integrations MaxMind GeoLite2 (download.maxmind.com): Used only when an administrator downloads or updates the local GeoIP database. The configured MaxMind account ID and license key are sent to MaxMind. Visitor IP addresses are resolved locally and are not sent to MaxMind during normal requests. Privacy: https://www.maxmind.com/en/privacy-policy Terms: https://www.maxmind.com/en/geolite2/eula Have I Been Pwned Passwords (api.pwnedpasswords.com): Used for breached-password checks when enabled. SiteFort sends only the first 5 characters of the SHA-1 password hash. Full passwords and full hashes are not sent. Privacy: https://haveibeenpwned.com/Privacy Terms: https://haveibeenpwned.com/TermsOfUse Google reCAPTCHA (www.google.com) and Cloudflare Turnstile (challenges.cloudflare.com): Used only when selected and configured for CAPTCHA protection. The selected provider receives the challenge token, site key, and visitor or browser data required to process the challenge. Policies: https://policies.google.com/privacy https://policies.google.com/terms https://www.cloudflare.com/turnstile-privacy-policy/ https://www.cloudflare.com/website-terms/ Cloudflare API (api.cloudflare.com): Used only when Cloudflare Sync is enabled. SiteFort sends the Zone ID, API token or credentials, zone details, blocked IP addresses, country rules, selected user-agent rules, and firewall rule data required for synchronization. Privacy: https://www.cloudflare.com/privacypolicy/ Terms: https://www.cloudflare.com/website-terms/ Notification webhooks: Security alerts may be sent to Slack (hooks.slack.com), Discord (discord.com, discordapp.com), or a custom HTTPS webhook configured by the administrator. Payloads may include site name, site URL, event type, severity, scan counts, vulnerability names, CVE identifiers, firewall counts, usernames, IP addresses, browser names, action URLs, timestamps, and event details. Slack policies: https://slack.com/trust/privacy/privacy-policy https://slack.com/terms-of-service/user Discord policies: https://discord.com/privacy https://discord.com/terms Local site checks Some SiteFort checks send loopback requests to the protected site’s own public URL, including security-header checks, public-file exposure checks, and homepage link collection. These requests contact the protected site itself, not a third-party service.