[General] Security Question Failure?

[TheyCallMeAndy]

Alright. This morning I logged on to my site for the server I'm creating only to find that almost 60 spammers registered and posted around 300 threads. I wondered how they got through the security questions (which are required -- I tried registering without them)..

I went into my AdminCP -> Configuration -> Security Questions and found that none of the Security Questions had been entered correctly nor incorrectly. This means they somehow bypassed them, and it's probably my fault for missing something.

I checked for anything I was missing in the configuration to no prevail. Please share your knowledge if you know how to stop these constant spammers and fix my Security Questions.

[.m.]

see this thread and try the patch provided there (post #20)
or you can try using alternate security questions plugin : signup questions
you can also try using checkbox validation plugin