Google has announced that it is killing the classic CAPTCHA and replacing it with a new API dubbed 'noCAPTCHA reCAPTCHA', where users simply tick a box to confirm they are human. First introduced to ...

How do you let people create user accounts or post comments on your Web site without letting spam bots in? Simple — make your users prove they’re human. Many Web sites use CAPTCHA (Completely ...

For years, CAPTCHA has been the first line of defense for websites attempting to ward off spambots. But at a time when bot technology is beginning to rival human faculties, many Web developers have ...