Need Urgent Help
Last night I started to get some spambots registering as users on my site. I can tell they are spam from the usernames like, 'dzczcsjdcz'. I quickly did some checking on the forum and added the reCAPTCHA plugin to try to stop this. It installed no problem, and now new users need to add the math question, and the reCAPTCHA words in order to register. After waking up this morning I have found 63 new users that are all spam! And they just keep coming every 5 mins or so. How do I stop this? It is just constant now.
Hope someone can give me some advice. I tried putting the site in maintenance mode for a while, then turning it back on, but it just started again.