Facebook Engineers Admit They Don’t Know What They Do With Your Data

“We’ve built systems with open borders. The result of these open systems and open culture is well described with an analogy: Imagine you hold a bottle of ink in your hand. This bottle of ink is a mixture of all kinds of user data (3PD, 1PD, SCD, Europe, etc.) You pour that ink into a lake of water (our open data systems; our open culture) … and it flows … everywhere,” the document read. “How do you put that ink back in the bottle? How do you organize it again, such that it only flows to the allowed places in the lake?”

https://www.vice.com/en/article/qjk3wb/facebook-engineers-admit-they-dont-know-what-they-do-with-your-data