This extension really protects your site in real time, blocking attacks, alerting you by emails and keeping your files under control with 'File integrity' option. What's more, it's always updated with the latest vulnerabilities!
It's an extremely worthy and useful extension. Worth-paying extension, no doubt.
Besides, the plugin has detected a set of attacks to my web, and it was all recorded and I was advised. It makes me feel safer.
It's easy and it's free. Maybe i'll update to pro version in the future.
A quite nice job, congratulations to developer.