Meta said it spent $5 billion on global safety and security last year and employs hundreds of people dedicated to anti-terror work. Not every company has those kind of resources, but Meta has shared a new open-source tool that can help combat child exploitation, terrorist propaganda and other types of abusive content for free. The tool is called Hasher-Matcher-Actioner (HMA), and it builds on the company's previous image and video matching software that it also released three years ago.
HMA...