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Hiding secret codes in light protects against fake videos news.cornell.edu/stories/2025/

Fact-checkers may have a new tool in the fight against misinformation for AI generated or manipulated videos.

A team of Cornell researchers has developed a way to “watermark” light in videos, which they can use to detect if video is fake or has been manipulated.

Abe Davis, left, assistant professor of computer science in the Cornell Ann S. Bowers College of Computing and Information Science, and graduate student Peter Michael with a watermark light.

Hiding secret codes in light protects against fake videos | Cornell Chronicle

A team of Cornell computer science researchers has developed a way to “watermark” light in videos, which they can use to detect if video is fake or has been manipulated, another potential tool in the fight against misinformation.

news.cornell.edu · Cornell Chronicle

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