![]() Currently, with a 6 character captcha and low-med distortion and noise, bots able to bypass the Captcha have been reduced to 1 every couple days. If I had time, it would be very interesting to adjust these independently and see which is the most effective. I have been slowly increasing the captcha difficulty by adding distortion and noise and increasing the length of the captcha string. Many of the attempts that were blocked by Captcha were only off by one similar character - e.g., an 'i' instead of a '1' or a '6' instead of a 'b', etc. ![]() Certainly with the default settings (5 characters with very little noise or distortion), I was getting 2 or 3 per day solving the captcha. ![]() I've been watching the spambots activity closely on my site, and based on my observations here I'd say they definitely can solve the image Captcha sometimes.
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