Add Yahoo as a preferred source to see more of our stories on Google. A recent study has found that robots have a higher success rate in solving so-called CAPTCHA tests than human beings. CAPTCHA ...

Why it matters: The usefulness of Captcha tests depends on their ability to deter bots without significantly inconveniencing human users. Although not yet peer-reviewed, the results of a new study ...

The big picture: Captcha tests, which require users to click on grids of images to verify they are human, are among the most annoying things on the internet. Nevertheless, most users accept that they ...