Kitten-based authentication

The Register has a story, linking to this website about a replacement for the standard captcha, test to separate humans from robots. We’re all familiar with captchas: They’re a series of numbers and letters produced as a slightly obscured graphic that we have to decode and enter into a field on a form. This test has a picture of 9 cute animals in a grid and you have to click on the three pictures of kittens.