10 Best Quttera ThreatSign Alternatives in 2026
Updated September 7, 2026 · Ranked by how closely each plugin matches, from WordPress.org data · How this works
Quttera ThreatSign has 10,000+ active installs on WordPress.org. These 10 plugins share its category or its tags on WordPress.org, are actively maintained, and each has at least 100 active installs. They are ordered by how closely they match, not by our opinion.
The 10 closest alternatives to Quttera ThreatSign
- 1
MalCare WordPress Security
Closest matchMalCare WordPress Security Plugin – Malware Scanner, Cleaner, Security Firewall
4.4 (548) 200,000+ active installsGet Bulletproof Security for your WordPress site. WordPress security plugin packed with comprehensive Firewall, malware scanner, cleaner & more.
Shares the malware removal, malware scanner, wordpress security tags on WordPress.org. About 20 times the installs, last updated 10 days ago.
- 2
4.8 (674) 20,000+ active installsWordPress Security Protection: Malware scanner, Firewall, Login Security, DB Backup, Anti-Spam...
Shares the malware scanner tag on WordPress.org. About 2 times the installs, last updated 18 days ago.
- 3
Defender Security
Paid version availableDefender Security – Malware Scanner, Login Security & Firewall
4.8 (334) 80,000+ active installsWordPress security plugin with malware scanner, IP blocking, audit logs, antivirus scans, firewall, 2FA, brute force login security, and more.
Shares the malware scanner tag on WordPress.org. About 8 times the installs, last updated 14 days ago.
- 4
Malcure Malware Shield — Removal, Repair, Monitor
4.4 (73) 10,000+ active installsYour WordPress site hacked? Malcure scans files AND database to find and help you remove malware casual scanners miss. Free. No bloat.
Shares the malware scanner tag on WordPress.org. A similar number of installs, last updated August 3, 2026.
- 5
SecuPress
Paid version availableSecuPress with Simple SSL – Simple and Performant Security
4.1 (107) 40,000+ active installsProtect your WordPress with SecuPress, analyze and ensure the safety of your website daily.
Shares the wordpress security tag on WordPress.org. About 4 times the installs, last updated July 21, 2026.
- 6
Security Optimizer – The All-In-One Protection Plugin
4.5 (157) 1 million+ active installsSecure your WordPress site from brute-force attacks, threats, malware, and bots. Free to use and easy to set up.
Shares the malware scanner tag on WordPress.org. About 100 times the installs, last updated 10 days ago.
- 7
BBQ Firewall – Fast & Powerful Firewall Security
4.9 (160) 100,000+ active installsThe fastest firewall plugin for WordPress. Protect against a wide range of threats with minimal performance impact.
About 10 times the installs, last updated 29 days ago.
- 8
4.9 (783) 100,000+ active installsThis Anti-Malware scanner searches for Malware, Viruses, and other security threats and vulnerabilities on your server and it helps you fix them.
About 10 times the installs, last updated June 29, 2026.
- 9
NinjaFirewall (WP Edition) – Advanced Security Plugin and Firewall
4.9 (220) 100,000+ active installsA true Web Application Firewall to protect and secure WordPress.
About 10 times the installs, last updated 22 days ago.
- 10
4.9 (83) 100,000+ active installsWPS Limit login limit connection attempts by IP address
About 10 times the installs, last updated 24 days ago.
Switching from Quttera ThreatSign: common questions
What is the best alternative to Quttera ThreatSign?
MalCare WordPress Security is the closest match: it shares the same WordPress.org tags and has 200,000+ active installs with a 4.4 out of 5 rating.
Which Quttera ThreatSign alternative has the most users?
Security Optimizer, with 1 million+ active installs reported by WordPress.org.
Which Quttera ThreatSign alternative is rated highest?
Anti-Malware Security and Brute-Force Firewall, rated 4.9 out of 5 by 783 reviewers. Only plugins with at least 50 reviews are counted.
Are these Quttera ThreatSign alternatives free?
Every plugin listed here is free to install from WordPress.org. Where WordPress.org marks a plugin as commercial, the developer also sells a paid version or add-ons, and that is shown on each plugin.
How are alternatives chosen?
Automatically, from WordPress.org data: plugins that share a category top 10 with Quttera ThreatSign score highest, then plugins that appear in the same WordPress.org rankings, then plugins with the same tags, weighted so rare tags count more than common ones. Plugins by the same author and plugins rated under 4.0 are left out.
How we choose these alternatives
Nothing on this page is picked by hand. Every day we walk the whole WordPress.org directory, then score every plugin against Quttera ThreatSign on three signals: sharing a category top 10 counts most, then appearing in the same WordPress.org rankings, then carrying the same tags, with rare tags counting for more than common ones like "wordpress". Plugins by the same author are excluded, so an author's own add-ons cannot fill the list, and so is anything rated below 4.0 or with fewer than 100 active installs. The ten highest scores are what you see, in that order. Full methodology.
The bottom line
MalCare WordPress Security is the closest match to Quttera ThreatSign by the data we track, and Security Optimizer has the widest reach with 1 million+ active installs. Security Optimizer shipped the most recent release, on August 28, 2026. The list is rebuilt every day from WordPress.org, so a plugin that stops being maintained drops out on its own.
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What moved this week
One email a week, built from the same daily snapshots these rankings come from: the plugins that climbed, what launched, and one ranking worth a look.