How to add a captcha on the blog signup form in a WordPress multisite with Beyond Multisite?

With the Captcha module of Beyond Multisite you can protect all built in WordPress forms, including the multisite blog signup (wp-signup.php) form. After you install and network activate the plugin, here are the next steps to take:

1. From the Network Admin Screen click on Beyond Multisite
2. Click Show Settings in the Captcha module box
3. The following 3 check-boxes are related to this form. You choose which to enable:
   1. User signup form – Shows the captcha on the first part of the form when a user is created.
   2. Blog signup form (logged-out visitors) – Shows the captcha on the second part of the form where a blog is created and is visible for guest visitors.
   3. Blog signup form (logged-in users) – Shows the captcha on the second part of the form where a blog is created and is visible for logged in users.
4. Click Update Settings
5. If the module is turned off, turn it on with the Turn On button

Now we can see a security image on the blog signup form: