Wordfence is a powerhouse of a security plugin is just what your WordPress site is looking for. Its web application firewall prevents your site from getting hacked as it is powered by Threat Defense Feed. It takes advantage of the proprietary feed, which alerts you immediately whenever your site gets hacked.
It includes a Live Traffic view that gives you a real-time hawk’s eye view of your online traffic as well as any hacking attempts that are made. It has over 22 million downloads and is 100 percent open-source as well as free. As long as you download from the WordPress directory, you should be fine.
It also features a Premium API key that grants you premium support, scheduled scans, country blocking, password auditing, real-time updates to the Threat Defense Feed, a two-factor authentication and also checks your IP address if it is being used to spam-vertised.