The Sucuri WordPress Security plugin is a security toolset for security integrity monitoring, malware detection and security hardening.

Detects file changes in WordPress core, themes, and plugins. Sends email alerts to the site admin.

VulnTitan is lightweight WordPress security plugin that helps you detect known vulnerabilities, malware infections, and unauthorized file changes. It uses real-time threat data from the VulnTitan API to scan your plugins, themes, and WordPress core for critical issues. With easy-to-understand results, no bloat, and modern scanning logic, VulnTitan gives you the essential tools to secure your site — without slowing it down.