Wordfence has quickly become the go to security plugin for WordPress. After I install WordPress for myself or a client it is ALWAYS the first plugin I install and setup. Even the Free version is very robust and beneficial to your website.
Description on WordPress.org…
THE MOST POPULAR WORDPRESS FIREWALL & SECURITY SCANNER
Wordfence includes an endpoint firewall and malware scanner that were built from the ground up to protect WordPress. Our Threat Defense Feed arms Wordfence with the newest firewall rules, malware signatures and malicious IP addresses it needs to keep your website safe. Rounded out by 2FA and a suite of additional features, Wordfence is the most comprehensive WordPress security solution available.
Web Application Firewall identifies and blocks malicious traffic. Built and maintained by a large team focused 100% on WordPress security.
[Premium] Real-time firewall rule and malware signature updates via the Threat Defence Feed (free version is delayed by 30 days).
[Premium] Real-time IP Blocklist blocks all requests from the most malicious IPs, protecting your site while reducing load.
Protects your site at the endpoint, enabling deep integration with WordPress. Unlike cloud alternatives does not break encryption, cannot be bypassed and cannot leak data.
Integrated malware scanner blocks requests that include malicious code or content.
Protection from brute force attacks by limiting login attempts.
WORDPRESS SECURITY SCANNER
Malware scanner checks core files, themes and plugins for malware, bad URLs, backdoors, SEO spam, malicious redirects and code injections.
[Premium] Real-time malware signature updates via the Threat Defence Feed (free version is delayed by 30 days).
Compares your core files, themes and plugins with what is in the WordPress.org repository, checking their integrity and reporting any changes to you.
Repair files that have changed by overwriting them with a pristine, original version. Delete any files that don’t belong easily within the Wordfence interface.
Checks your site for known security vulnerabilities and alerts you to any issues. Also alerts you to potential security issues when a plugin has been closed or abandoned.
Checks your content safety by scanning file contents, posts and comments for dangerous URLs and suspicious content.
[Premium] Checks to see if your site or IP have been blocklisted for malicious activity, generating spam or other security issue.
Two-factor authentication (2FA), one of the most secure forms of remote system authentication available via any TOTP-based authenticator app or service.
Login Page CAPTCHA stops bots from logging in.
Disable or add 2FA to XML-RPC.
Block logins for administrators using known compromised passwords.
Wordfence Central is a powerful and efficient way to manage the security for multiple sites in one place.
Efficiently assess the security status of all your websites in one view. View detailed security findings without leaving Wordfence Central.
Powerful templates make configuring Wordfence a breeze.
Highly configurable alerts can be delivered via email, SMS or Slack. Improve the signal to noise ratio by leveraging severity level options and a daily digest option.
Track and alert on important security events including administrator logins, breached password usage and surges in attack activity.
Free to use for unlimited sites.
With Live Traffic, monitor visits and hack attempts not shown in other analytics packages in real time; including origin, their IP address, the time of day and time spent on your site.
Block attackers by IP or build advanced rules based on IP Range, Hostname, User Agent and Referrer.
Country blocking available with Wordfence Premium.