RMGCaptcha Math Guard — Math CAPTCHA for Login and WooCommerce
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A lightweight math CAPTCHA and spam protection plugin for WordPress login, WooCommerce, and Contact Form 7 forms.
RMGCaptcha Math Guard adds a GDPR-friendly, math-based CAPTCHA to protect WordPress login, WooCommerce, and Contact Form 7 forms from spam, fake registrations, and brute-force attacks. No external services, no tracking, and fully WordPress.org compliant.
Features:
- WordPress login protection (captcha on wp-login.php)
- Contact Form 7 integration via [pmcMathcaptcha] / [pmcMathcaptcha*]
- WooCommerce login and registration protection
- Lightweight spam protection without Google reCAPTCHA or third-party tracking
- Configurable difficulty and operations (Addition/Subtraction/Multiplication/Random)
- Hide captcha for logged-in users
- Custom error message support
- Optional rate limiting and honeypot
- Failed login log + logged user list (admin pages)
- Translation-ready