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Compared to WordPress, one serious downside of many other CMSs, is that they don't have security solutions and firewalls, like Wordfence or others.
Vanilla is no exception and there is no built in solution to prevent to prevent flood or malicious requests.
Still... I found this script derived from WordPress BBQ.
The developer says:
To use BBQ on non-WP sites, include the following code for each page request:_
How could I do that for Vanilla 2.3? Thank you!