Install the free MainWP extension

The free Security Ninja for MainWP extension is on WordPress.org:

https://wordpress.org/plugins/security-ninja-for-mainwp/

What the free extension does

It reads and displays data available from the free edition of Security Ninja on your child sites. WordPress.org rules mean we cannot ship premium-only code in that plugin.

Install the free extension

1. Log in to the WordPress site where MainWP Dashboard is installed.
2. Go to Plugins → Add New.
3. Search for Security Ninja for MainWP.
4. Install and activate the plugin.

Then connect child sites that have Security Ninja installed, and sync from MainWP so data can appear.

When you need the premium addon

If your plan includes the premium MainWP addon (Pro, Agency, AppSumo, or a separate MainWP addon purchase), do not rely on this free wordpress.org build. Download the premium zip from your account and follow:

Install Security Ninja with MainWP

The premium path covers license activation, Dashboard requirements, child site setup, and empty-dashboard troubleshooting.