How do you let people create user accounts or post comments on your Web site without letting spam bots in? Simple — make your users prove they’re human. Many Web sites use CAPTCHA (Completely ...
In their paper Text-based CAPTCHA Strengths and Weaknesses, Elie Bursztein, Matthieu Martin and John C. Mitchel give a list of the design principles which ReCAPTCHA uses and which should be used to ...
When I was a law enforcement and intelligence officer, I was often surprised at the maturity of the businesses and services developed by cybercriminals. Today it’s still fascinating to watch how ...
Add articles to your saved list and come back to them any time. Captcha systems to stop automated postings have been 'completely broken' by spammers, experts say. So what's the alternative? Tim ...
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