Our research recently showed that today's Artificial Intelligence technology can solve even the most difficult variant of distorted text at 99.8% accuracy. Thus distorted text, on its own, is no longer a dependable test.If you are a robot… well then you need to stop, right now. Bad robot.
To counter this, last year we developed an Advanced Risk Analysis backend for reCAPTCHA that actively considers a user's entire engagement with the CAPTCHA—before, during, and after—to determine whether that user is a human.