How can robots beat CAPTCHAs?
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totymedli
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Published on 2013-03-06T12:42:41Z
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2013/11/01
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I have a website e-mail form. I use a custom CAPTCHA to prevent spam from robots. Despite this, I still get spam.
Why? How do robots beat the CAPTCHA? Do they use some kind of advanced OCR or just get the solution from where it is stored?
How can I prevent this? Should I change to another type of CAPTCHA?
I am sure the e-mails are coming from the form, because it is sent from my email-sender that serves the form messages. Also the letter style is the same.
For the record, I am using PHP + MySQL, but I'm not searching for a solution to this problem. I was interested in the general situation how the robots beat these technologies. I just told this situation as an example, so you can understand better what I'm asking about.
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