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Features: Security / Re: Dynamic CAPTCHAs
wizzle « on May 27th, 2011, 04:31 PM »
From the bots hitting my traps, the majority will login, and post within 1 to 5 seconds. (the record is 8 join,posts a second)
But generally, humans cannot/don't login and post a 2600+ character message within 3 seconds.
Quote
Yeah, slowing them down doesn't make too much difference in the real world of things, actually - all it means is the difference between 1,000 and a couple of hundred spam messages - either way it's still a royal pain to deal with.
Slowing them down is only part of it. The other part of the variable timer thing is that they will hit the submit/post url before a human could.

Checking my traps logs I'd say the max time a bot will stay on a forum is 10 seconds. Seems the average is around 5, with 1 page hit per second. (roughly)
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Features: Security / Dynamic CAPTCHAs
Nao « on May 6th, 2011, 07:31 PM »
Feature: Dynamic CAPTCHAs
Developer: Arantor
Target: users, admins
Status: 100% (complete; by its nature, more captchas will be added in the future as needed.)
Comment:

A captcha is a script that shows an image with usually some text in it, and asks you to confirm what the image says. It's a relatively effective measure taken against spam bots, but it only works as long as bots aren't updated to be able to decrypt the captcha. For that reason, new captchas need to be used as soon as one is found to be ineffective against non-human spam.
Wedge gets around this by implementing a more robust captcha system. It's built as a plug-in system that allows you to write your own captchas, or simply drop in new captchas written by others. One captcha = one file in the captcha folder. As simple as that. Wedge includes 10 new captchas, some of which use animated GIFs built dynamically.