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ACM News

Stanford ­niversity Researchers Break Nucaptcha Video Security

Still from NuCaptcha video stream

Example still image from a NuCaptcha video stream.

When it launched in 2010, NuCaptcha touted its proprietary technology as being able to "provide the highest level of security available" by using video streams to display those distorted letters you type in to prove you're really a human.

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