Menu
Internet giants to block child porn images using a common list

Internet giants to block child porn images using a common list

Google, Facebook and Twitter are among the companies that will block child sexual abuse images, using a hashed list

Fingerprint reader on laptop

Fingerprint reader on laptop

Facebook, Google, Twitter, Yahoo and Microsoft will take a new step toward combating the spread of child pornography, by blocking images identified in partnership with an industry group.

The companies will block images of child sexual abuse that have been identified by the Internet Watch Foundation, a U.K.-based nonprofit that aims to locate and stamp out such content online. The effort is aimed at speeding up the identification and removal of images of child sexual abuse worldwide, and preventing them from being uploaded in the first place.

Only known child sexual abuse images identified by the IWF will be blocked. Each company will download a list of images that have been "hashed" by IWF analysts, under a process that creates a digital fingerprint of each image. The hashes are created from images that IWF's analysts have assessed, which come from various online sources like reports from the public, and the U.K.'s Child Abuse Image Database.

Hashing the images is designed to make it easier for sites to identify them quickly amid vast amounts of other content.

The effort allows for potentially larger numbers of images to be blocked on some of the Internet's most trafficked sites. On an average, IWF said it removes around 500 URLs each day, with each URL containing one to thousands of child sexual abuse images.

Many different Internet companies could potentially make use of the hashed list, IWF said Monday in its announcement. Any company that provides services like image search and storage, hosting services, or social media and chat could use the list to identify and remove the images or prevent them from being shared.

Facebook, Google, Microsoft, Twitter and Yahoo are five IWF member companies using the list so far. Over time, the list will be rolled out to all eligible members, the group said.

Some Internet companies have already been using image hashing technology developed by Microsoft to automatically identify and block child pornography. Microsoft's technology, called PhotoDNA, is designed to identify images even if the image has been altered. Facebook has been using it since 2011 to prevent the upload of known child pornography images.

IWF's system uses PhotoDNA as well as other hashing techniques.

Still, experts say there are challenges tied to hashing. Changes in the image, like a crop or resize, can still quash the detection.

IWF does not hash video, although the group says they're developing video hashing software.

Each of the participating sites will download an updated hash list daily, IWF said. It's designed to proactively scan the sites for the known images.

Zach Miners covers social networking, search and general technology news for IDG News Service. Follow Zach on Twitter at @zachminers. Zach's e-mail address is zach_miners@idg.com


Follow Us

Join the newsletter!

Or
Error: Please check your email address.

Tags social mediainternetGoogleFacebooktwittersearch enginessocial networkingInternet-based applications and servicesInternet Watch Foundation

Featured

Slideshows

Bumper channel crowd kicks off first After Hours of 2018

Bumper channel crowd kicks off first After Hours of 2018

After Hours made a welcome return to the channel social calendar with a bumper crowd of partners, distributors and vendors descending on The Jefferson in Auckland to kick-start 2018. Photos by Gino Demeer.

Bumper channel crowd kicks off first After Hours of 2018
Looking back at the top 15 M&A deals in NZ during 2017

Looking back at the top 15 M&A deals in NZ during 2017

In 2017, merger and acquisitions fever reached new heights in New Zealand, with a host of big name deals dominating the headlines. Reseller News recaps the most important transactions of the Kiwi channel during the past 12 months.

Looking back at the top 15 M&A deals in NZ during 2017
Kiwi channel closes 2017 with After Hours

Kiwi channel closes 2017 with After Hours

The channel in New Zealand came together to celebrate the close of 2017, as the final After Hours played out in front of a bumper Auckland crowd.

Kiwi channel closes 2017 with After Hours
Show Comments