Web security and network services provider Cloudflare has announced a new experiment to replace CAPTCHA challenges, so users aren't forced to identify traffic lights or bicycles while browsing the web.
Many websites use CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) tools to differentiate between humans and robots, preventing spam. CAPTCHA has a variety of forms, including image- and text-based puzzles, or the common 'I'm not a robot' ReCAPTCHA.
CAPTCHA has actually helped several sites to prevent bots from flooding their systems and overloading them to deny services to human users. Cloudflare acknowledges the fact that 'CAPTCHAs strengthen the security of online services' but argues 'there's a very real cost associated' with the system.
From Computing (U.K.)
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