CAPTCHA extension activated
 

I have installed a CAPTCHA extension in CFD-Wiki. This extension will enforce users to compute a simple sum when registering and when entering new external links in a CFD-Wiki page. The reason for this is that this blocks automated bot programs from automatically registering users and adding external spam links to pages. As you might have noticed we have lately been harassed by bots that automatically register users. I hope this extension will stop this.

If you do not like this CAPTCHA extension please let me know. It can be configured in different ways so if something it does is problematic for you please let me know so that I can change its configuration to make it easier to work with.