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image recognition, decaptcha & bots
#1
I modified the captcha (image recognition) mechanism on account creation to solve the spam bots problem.
And then one day later the next bot was registered on the forum.

How can that happen?
Now I realized (see the thread on stopforumspam) that the captchas are solved by humans, e.g. certain services (e.g. keepvid.c0m) require "as payment" to solve a captcha. These solved captures are sold to bot advertisers (see e.g. decaptcher.c0m: 1000 solved captchas for 2$)

Fortunately there is now a stopforumspam-plugin for myBB (our forumsoftware), which I installed and which dont let recognized spam bots register. Lets see how well this works.
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