Facebook has been ordered to curb its data collection practices in Germany after a landmark ruling on Thursday that the world’s largest social network abused its market dominance to gather information about users without their consent. . . .
[Germany’s Federal Cartel] office objected in particular to how Facebook pools data on people from third-party apps – including its own WhatsApp and Instagram – and its online tracking of people who aren’t even members through Facebook “like” or “share” buttons.