Xen Spam Attack?

[Xyphien]

So on my site, and several other xenforo sites we were hit with a bunch of spam, and advertisements last night, I was wondering if anyone else had this problem, as they all seemed to be happening to XenForo only sites.

 

[Jake Bunce]

Discussion here:

http://xenforo.com/community/threads/my-forums-getting-lots-of-spam.35195/

Some good info posted about how to deal with this.