Forum being overrun by fake registrations

[fastrack1]

I am running vBulletin 3.8.4. Even though I am using the security and human verifications options within the software, my forum is being overrun by fake registrations. This has just started happening over the past couple months. I get dozens every night.

Does anybody know how to stop this? If possible, please put in plain English, as I am not an expert on vBulletin in the least.

Thanks so much!

[Chase]

Change your human verification question/answer to something else (i.e. a question relevant to your forums genre)

In your vbulletin options set registrations to be approved manually, by you.

Require a unique email address.

There are a couple mods here that help control spam registrations... can't think of them right now but do a search.

[Amaury]

You should upgrade to 3.8.7 for security reasons.

[Simon Lloyd]

You should upgrade to 3.8.7 for security reasons.You're right but that wont stop the registrations, you need plenty of Q&A's maybe use a mod like https://vborg.vbsupport.ru/showthread.php?t=201466 works very well.