Google Invisible reCAPTCHA fights robots from the shadows
by from Techreport on (#2FBFZ)
Pretty much everyone hates CAPTCHA forms, the often-annoying checkboxes or miniature surveys that many web sites force upon a user in order to access a particular page. A CAPTCHA's purpose is to serve as a verification tool to ensure that only conscious entities like living, breathing human beings can access certain internet resources, and prevent bots from spamming contact and e-mail forms. Various flavors of the tool have required unique inputs, from clicking a box that says "I am not a robot," to forcing users to type in words that OCR software couldn't figure out, or categorize different images. Google claims its Invisible reCAPTCHA technology can now keep out bots without requiring any intervention from actual users.
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