Wordfence

Wordfence is a security plugin built specifically for WordPress. It includes an endpoint firewall that filters malicious traffic before it reaches your site, plus a real-time malware scanner that checks core files, themes, and plugins for known threats. The scanner also looks for backdoors, malicious redirects, and SEO spam. Wordfence blocks brute force attacks by limiting login attempts and enforcing strong passwords. It also offers two-factor authentication and CAPTCHA integration.

The plugin integrates directly with the WordPress admin dashboard, so you don't need separate tools. Its Threat Defense Feed updates firewall rules and malware signatures in real time from the Wordfence cloud. Wordfence also provides live traffic monitoring, showing you requests blocked and visitors in real time. The company behind it, Defiant Inc., maintains a security research team that publishes regular vulnerability disclosures.

Wordfence has a free version with core firewall and scanner features. Premium adds real-time rule updates, country blocking, and priority support. It is one of the most widely installed WordPress security plugins, protecting over 4 million sites. If you run a WordPress site and want a straightforward security solution, Wordfence is a solid choice.