Google’s reCAPTCHA turns “invisible,” will separate bots from people without challen

mattytun

Google's reCAPTCHA is the leading CAPTCHA service (that's "Completely Automated Public Turing test to tell Computers and Humans Apart") on the Web. You've probably seen CAPTCHAs a million times on sign-up pages across the Web; to separate humans from spam bots, a challenge will pop up asking you to decipher a picture of words or numbers, pick out objects in a grid of pictures, or just click a checkbox. Now, though, you're going to be seeing CAPTCHAs less and less, not because Google is getting rid of them but because Google is making them invisible.

The old reCAPTCHA system was pretty easy—just a simple "I'm not a robot" checkbox would get people through your sign-up page. The new version is even simpler, and it doesn't use a challenge or checkbox. It works invisibly in the background, somehow, to identify bots from humans.


Source: Google’s reCAPTCHA turns “invisible,” will separate bots from people without challenges

Zanzib

As I mentioned on the other post about it, the system decided I might be suspicious and after clicking the 'I'm not a robot' it presented me with the pictures and told me to click on the road signs.

Seems it will keep putting the picture challenges up until they're satisfied you're human.