Design Lead
reCpatcha is a tool for protecting websites from spam. Users needing to identify distorted text, Google was using crowdsourcing to digitize books. Overtime, bots became better and better, so captchas became harder and harder.
We needed to come of a creative solution that is more user friendly, detects bots but can adaptive as the bots “learn” the latest challenge - hence we introduced the “no captcha” option - Making the UI flexible to different challenge type, introducing an extra step (to only some of the users if we cannot detect they are not bots right away), and making it work globally.
Making sure we give the user feedback (check-mark), working with form conventions, and making it simple. In addition, this image detection crowdsourcing is helping Google improve its Street View and mapping to give everyone a better wayfinding experience.
reCaptcha 2.0 has been adopted globally as the new standard for reCaptchas.
https://www.google.com/recaptcha/about/