XenForo includes a suite of tools designed to prevent, combat, and manage spam.
There are several tools that can be used to prevent spammers from registering. These can all be found in the Spam management options.
The StopForumSpam database can be checked. This...
This add-on allows you to set a captcha for each connect.
This add-on Protect your forums from repeat login attacks with the captcha ( Exemple : Sentry Mba , .... )
We added two options :
Enable captcha for each connection
Activate the captcha to connect to the admin panel