NuCaptcha is using video to make it harder for spam operations to crack CAPTCHA protections on Websites.

NuCaptcha is offering a fresh approach to blogs and other Websites trying to verify that information is being entered by humans, not computers. The platform uses video technology and animation to make CAPTCHAs easier for humans to solve, yet harder for machines to decipher.

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http://www.eweek.com/c/a/Security/Company-Looks-to-Slow-Spammers-With-Video-CAPTCHA-Technology-127193/