Plugin that provides a comprehensive set of tools to help keep your site secure from cyber threats.

Features:

1. Auditing: Monitor changes to your website, including file changes, user logins, and plugin updates, to detect suspicious activity.
2. Malware Scanner: Scan your site for malware, including viruses, Trojans, and other malicious code, with the ability to clean up infected files.
3. Security Hardening: Implement a number of best-practice security measures, such as restricting access to sensitive areas of your site, disabling file editing, and more.
4. Firewall: Block malicious traffic and protect against common attacks, such as SQL injection and cross-site scripting.
5. Alerts and Notifications: Receive alerts and notifications of any security incidents, allowing you to respond quickly and minimize damage.
6. Performance Optimization: Improve the performance of your site by optimizing the delivery of your content, reducing the number of requests, and more.

Guidelines for using the plugin:

1. Keep the plugin updated to the latest version to ensure you have the latest security features and bug fixes.
2. Regularly scan your site for malware and suspicious activity, and address any issues promptly.
3. Implement the security hardening measures recommended by the plugin, such as limiting login attempts and disabling file editing.
4. Follow best practices for WordPress security, such as using strong passwords and keeping plugins and themes up to date.

User reviews:

Sucuri Security is widely regarded as one of the best security plugins for WordPress, with many users praising its comprehensive set of features and ease of use. Some users have reported that the firewall can sometimes block legitimate traffic, but this is rare and can be easily resolved by adjusting the firewall settings. Overall, users have reported that the plugin is effective in protecting their sites from cyber threats, with a user-friendly interface that makes it easy to implement security measures.

Sucuri Security offers a Pro version of its plugin that provides additional features and capabilities compared to the free version.

Features of the Pro version:

1. DDoS Protection: Protect against Distributed Denial of Service (DDoS) attacks, which can overwhelm your website with traffic and make it unavailable.
2. Content Delivery Network (CDN): Speed up your website by delivering content from a global network of servers, reducing the distance that data has to travel to reach your visitors.
3. Monitoring: Monitor your website for security incidents 24/7, with real-time alerts and notifications, and a response team to assist you in the event of an attack.
4. Malware Removal: Receive assistance in cleaning up your site in the event of a malware infection, with a guarantee to remove all malicious code.
5. Post-Hack Security Actions: Implement a number of measures to secure your site after a hack, including changing passwords, updating software, and more.
6. Prioritized Support: Receive priority support from the Sucuri team, with faster response times and access to a dedicated support channel.
7. Advanced Reports: Access detailed reports on your site’s security, including information on malware, traffic, and more.

Overall, the Pro version of Sucuri Security provides an enhanced level of security and support for professional users, with additional features and capabilities for protecting your website from cyber threats.