Tech companies operating some of the world’s biggest online platforms — including Facebook-owner Meta, Microsoft, Google, Twitter, Twitch, and TikTok — have signed up to a new EU rulebook for tackling online disinformation.

These firms and others will have to make greater efforts to halt the spread of fake news and propaganda on their platforms, as well as share more granular data on their work with EU member states.

Announcing the new “Code of Practice on disinformation,” the European Commission said that the guidelines had been shaped particularly by “lessons learnt from the COVID19 crisis and Russia’s war of aggression in Ukraine.”