Facebook Files provided yet another confirmation that the company's extremely profitable recommender systems come at a high price paid by vulnerable individuals and our societies. Algorithms optimised for engagement amplify toxic content, such as hate speech or disinformation, and target humans based on their vulnerabilities.

There is little point in telling Facebook which posts you do not want to see – it will not listen.

Your online profile is not always built on facts. It is shaped by technology companies and advertisers who make key decisions based on their interpretation of seemingly benign data points: what movies you choose watch, the time of day you tweet, or how long you take to click on a cat video.