海角大神

Child porn too big for law enforcement? Microsoft steps in.

Microsoft donates technology and creates public awareness campaign to stamp out child porn online.

Child pornography is the Internet鈥檚 most severe social problem.

In recent years it has exploded as countless illicit images are circulated online 鈥� viewed by pedophiles and passed around from predator to predator. Since 2003, the (NCMEC) has reviewed and analyzed almost 30 million of these images. It projects that an additional nine million images will be examined in the coming year. NCMEC also acknowledges that the scope of the child porn problem is too large for law enforcement, policy makers and child protection groups to handle on their own.

Enter the world鈥檚 technology company.

鈥淲e can help make a big dent,鈥� Microsoft SVP and General Counsel Brad Smith told a group of journalists, bloggers and industry influencers at the company鈥檚 recent . 鈥淭hese photos live on the Internet forever and every time they are shared or viewed, the children in them are re-victimized. It鈥檚 not enough to stop the perpetrators. The real point is getting these images off the Internet.鈥�

In 2009, Microsoft donated a new technology to the NCMEC that has the potential to make the kind of dent Smith talks about. The technology, called , was initially created by Microsoft Research and then further developed by , a leading digital-imaging expert and professor of computer science at Dartmouth College. Using a unique digital blueprinting technology that has a 98 percent accuracy rate, PhotoDNA finds hidden copies of the worst images of child sexual exploitation known today.

鈥淭he [Photo DNA] project is unique in that it is challenging from a technical and engineering point of view, and has the potential to significantly impact the distribution of the horrifying and troubling trafficking of child porn,鈥� says Farid. 鈥淚t is rare as an academic to work on something that has both of these properties.鈥�

Although major content hosters such as Yahoo and Google enforce content standards as a matter of practice, the manual and human-intensive processes they rely on to remove inappropriate posts are no match for the sheer volume of child porn online today. That is why a technology like PhotoDNA, which is used by Microsoft鈥檚 own search engine, is so necessary. But there are other reasons, too.

鈥淭his project is also extremely important because nobody else seems able or willing to publicly address it in a significant way,鈥� Farid says. Indeed, PhotoDNA has received scant attention from the mainstream press, probably because it centers on a problem that no one likes to talk about. Were Microsoft purely motivated by publicity, then their safest bet would probably have been to lay low on the chid porn issue. But to the contrary, Microsoft is moving in the opposite direction. With its campaign, launched as a complementary effort to PhotoDNA and in conjunction with NCMEC, Microsoft urges the public to take a greater interest in this important cause.

According to Farid and others, this is a case where corporate interests effectively 鈥� and perhaps even altruistically 鈥� work for the greater good. 鈥淚 am generally cautious of partnering with corporations,鈥� says Farid. 鈥淭he Microsoft team, however, has been incredibly committed to working on this problem with no obvious financial benefit.鈥�

Whereas Microsoft鈥檚 direct financial incentives are still to be determined, the benefits of leveraging the company鈥檚 reach and innovation in order to tackle a pervasive social problem are clear enough. 鈥淰ery few companies can operate at the same level as Microsoft,鈥� Farid says.

Theoretically PhotoDNA鈥檚 underlying technology could be applied to various problems related to Internet content 鈥� resulting in social and financial upsides. With respect to child porn, Farid says that PhotoDNA is likely only the first in a series of technologies that he and Microsoft will develop to disrupt the flow of images across the Internet. 鈥淲e will continually enhance PhotoDNA to contend with counter-measures employed by traffickers. We will also extend this work to analyze video.鈥�

Whatever lies ahead, it isn鈥檛 any wonder why Farid characterizes his current collaboration with Microsoft as: 鈥渢he single most important thing that I have done in my career.鈥� Let鈥檚 hope he鈥檚 not alone 鈥� and that more leaders in the technology space will step up to help make the Internet a safer place.

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