Shieldfy is a cloud-based security shield for your website to protect it from web attacks and malwares.
WordPress core security class: A Web Application Firewall to protect your WordPress web portal
The Wordfence WordPress security plugin provides free enterprise-class WordPress security, protecting your website from hacks and malware.
WordPress Website Security Protection: Firewall Security, Login Security, Database Security... Effective, Reliable, Easy to use...
HTTP Headers adds CORS & security HTTP headers to your website.
SiteLock WordPress Plugin provides complete website security management without leaving WordPress.
Autopilot protection for your WordPress against malicious URL requests.
WebRanger is a free security WordPress plugin that keeps your site secure by blocking the threats away while providing detailed security reports.
The Sucuri WordPress Security plugin is a security toolset for security integrity monitoring, malware detection and security hardening.
Headit is a simple plugin to allow you to add custom HTTP response headers to your site.
wordstress is a whitebox security scanner for wordpress powered websites.
Sucuri Security Website Firewall (CloudProxy) is a subscription based WAF and Cloud-based IPS designed to provide optimal security to everyday website
SmartFilter Security is the best security plugin to protect your WordPress site from malicious code injections in your posts and comments.
Scans wordpress website server security for detecting possible vulnerabilities and hacks.
PHPIDS for WordPress
MJP Security Tools is a plugin designed to fix a lot of WordPress security issues, as well as providing extra support.
HTML Purified replaces the default comments filters with the more secure HTML Purifier.
A wordpress security system plugin which will check every HTTP request against a given set of rules to filter out malicious requests.
Lets the user embed posts on other pages using a simple script-tag on the target page
Content Security Policy prevents content injection attacks by specifying valid sources of content for a site.