That's why there should also be a relatively short time-limit on any captchas. 30-60 seconds. If a captcha doesn't grow stale, it invites that kind of hand-off to a human.Tonttu wrote:Cheap remote workers in developing countries process the captchas as the requests arrive.
How recent was that new design?Just two weeks ago it was published that ReCAPTCHA was cracked with a 17.5% success rate.onehundredandtwo wrote:Actually, reCAPTCHA has very recently designed a new CAPTCHA if you look on their site.