# How to activate or deactivate ModSecurity in cPanel?

If you find that your website displays a **403**, **405**, or **406** error, it is very likely that some element of your site is being blocked by a **ModSecurity** rule.

**ModSecurity** is an application firewall. What it does is block certain requests or code executions that it deems dangerous. You can configure ModSecurity to allow or block certain executions as required by your website.

In the **cPanel** control panel, you can access the ModSecurity settings by following these steps:

1. In the cPanel control panel, go to the **Security => ModSecurity** option.

<figure><img src="/files/ooTBLgy2FNAKQWdWRNGu" alt=""><figcaption></figcaption></figure>

2. On the new screen, you will see your main domain and its subdomains. You can enable or disable ModSecurity on each one using the buttons on the right.

<figure><img src="/files/ahJQkUNOn37TcRD1hBfm" alt=""><figcaption></figcaption></figure>


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