Microsoft helping Twitter crack down on child pornography with PhotoDNA technology

twitter-bird-white-on-blueMicrosoft helped Facebook fight against child pornography, and now the Redmond software giant is lending a hand to Twitter, too.

The Guardian reported this morning that Twitter is set to implement Microsoft’s PhotoDNA technology this year to block out child pornography photos from its service.

PhotoDNA, developed in conjunction with Dartmouth College, derives what amounts to a digital fingerprint from photographs to be able to find and identify other versions of the same images online.

A few months after Facebook became first company outside of Microsoft to roll out the company’s PhotoDNA technology in 2011, Microsoft also began helping law enforcement fight child pornography with the PhotoDNA service. Microsoft previously donated PhotoDNA to the National Center for Missing & Exploited Children in December 2009.

Here’s a Microsoft graphic and video showing how the technology works.

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