‘A catastrophic failure’: computer scientist Hany Farid on why violent videos circulate on the internet

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‘Hashing’ would allow copies of videos to be removed from social media – but tech companies can’t be bothered to make it work

Photograph: Westend61/Getty ImagesPhotograph: Westend61/Getty Imagesn the aftermath of yet another racially motivated shooting that was live-streamed on social media, tech companies are facing fresh questions about their ability to effectively moderate their platforms.

Farid’s work includes research into robust hashing, a tool that creates a fingerprint for videos that allows platforms to find them and their copies as soon as they are uploaded. The Guardian spoke with Farid about the wider problem of barring unwanted content from online platforms, and whether tech companies are doing enough to fix the problem.

So if we had a technology that satisfied all of those criteria, Twitch would say, we’ve identified a terror attack that’s being live-streamed. We’re going to grab that video. We’re going to extract the hash and we are going to share it with the industry. And then every time a video is uploaded with the hash, the signature is compared against this database, which is being updated almost instantaneously. And then you stop the redistribution.

These are the same companies, by the way, that know just about everything about everybody. They’re trying to have it both ways. They turn to advertisers and tell them how sophisticated their data analytics are so that they’ll pay them to deliver ads. But then when it comes to us asking them, why is this stuff on your platform still? They’re like, well, this is a really hard problem.rabbit holes.

 

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