Worth a watch. Not exactly new news if you’ve been following this, but some of the detail is damning.
I’ll just say this about Facebook: way too little, way too late. This was by design, and Facebook have a very detailed history of doing something on purpose, denying it until they can’t any more when someone calls them on how what they’re doing is unethical, then “mea culpa” trying to cover their tracks after the fact.
It’s not a data security breach. It absolutely is a data privacy breach and a breach of fair processing principles.