Facebook uses Microsoft’s PhotoDNA to combat Child Pornography

To fight against child pornography, Facebook rolls out the Redmond company’s PhotoDNA technology. It is the first company outside of Microsoft to roll out the technology.

PhotoDNA is developed together with Dartmouth College. It can track pictures even if they are altered or cropped and uploaded to online services.The technology is free and it is based on Microsoft’s Research investments. Previously, PhotoDNA was donated to National Center for Missing & Exploited Children.

It has started to be used by Facebook to track down thousands of images uploaded to its servers.Everyday there are around 200 million images being uploaded onto Facebook. An unique identifier for an image known to contain child pornography will be created . The identifier represents the image and allows Microsoft’s technology to scan large data sets in a similar way to how antivirus programs operate.

According to New York  Times, Microsoft has tested the technology on its own SkyDrive, Windows Live and Bing services during the last year. 10 million images are compared to an inventory of 10,000 illegal photos and 125 hits are found per day.

Facebook will host an online press event at 3:00 p.m. (ET) on Friday to explain how it’s using the technology.

You can watch the video below to know more about PhotoDNA


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