Facebook, Microsoft, Twitter, YouTube Take Aim at Terrorist Content

The online giants announced via a Facebook Newsroom post that they will create a shared industry database of what they described as “hashes,” or unique digital fingerprints of content they have removed from their respective services, in the hopes that the information sharing will help each of them to more effectively rid their platforms of such content:

Our companies will begin sharing hashes of the most extreme and egregious terrorist images and videos we have removed from our services–content most likely to violate all of our respective companies’ content policies.