Use a web application firewall for your website

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A web application firewall , also known as a site firewall , protects your WordPress site by blocking malicious traffic . A firewall is an important component of WordPress security because it blocks malicious traffic so that it never reaches your site.

MalCare Firewall
MalCare has an advanced firewall integrated with the security plugin. When you install the plugin, the firewall takes effect, protecting your WordPress site from malware infection . The benefits of using the MalCare firewall are as follows:

Protects your website from SQL injection attacks, remote code execution, spam injection attacks, cross-site scripting attacks, etc.
Prevents hackers from exploiting office 365 database vulnerabilities on your site
Global IP protection for 100,000+ websites
An advanced firewall that learns from each protected website to proactively block bad traffic on other sites
Loaded from WordPress, so check all incoming traffic for malicious intent
No configuration required ; works out of the box
Included in all MalCare security plans
There are different types of website firewalls, categorized by where they are installed and how they work. The most effective firewalls are loaded before WordPress, such as MalCare and Sucuri, so they can filter out all bad traffic. Plugin-level firewalls , such as Wordfence, can filter out most, but not all, bad traffic.