Facebook Doesn’t Know What It Does With Your Data, Or Where It Goes: Leaked Document

Facebook is facing what it describes internally as a “tsunami” of privacy regulations all over the world, which will force the company to dramatically change how it deals with users’ personal data. And the “fundamental” problem, the company admits, is that Facebook has no idea where all of its user data goes, or what it’s doing with it, according to a leaked internal document obtained by Motherboard.

“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?”

(3PD means third-party data; 1PD means first-party data; SCD means sensitive categories data.)

“We can’t confidently make controlled policy changes or external commitments such as ‘we will not use X data for Y purpose.’ And yet, this is exactly what regulators expect us to do”

The document was written last year by Facebook privacy engineers on the Ad and Business Product team, whose mission is “to make meaningful connections between people and businesses,” and which “sits at the center of our monetization strategy and is the engine that powers Facebook’s growth,” according to a recent job listing that describes the team.

This is the team that is tasked with building and maintaining Facebook’s sprawling ads system, the core of the company’s business. And in this document, the team is both sounding an alarm, and making a call to change how Facebook deals with users’ data to prevent the company from running into trouble with regulators in Europe, the US, India, and other countries that are pushing for more stringent privacy constraints on social media companies.

“We do not have an adequate level of control and explainability over how our systems use data, and thus we can’t confidently make controlled policy changes or external commitments such as ‘we will not use X data for Y purpose.’ And yet, this is exactly what regulators expect us to do, increasing our risk of mistakes and misrepresentation,” the document read. (Motherboard retyped the document from scratch to protect a source.)

In other words, even Facebook’s own engineers admit that they are struggling to make sense and keep track of where user data goes once it’s inside Facebook’s systems, according to the document. This problem inside Facebook is known as “data lineage.”

In the last few years…

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