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A comment on Facebook will reveal who uploaded your contact info for ad targeting. Parent comment

Re:Facebook will reveal who uploaded your contact info for a... by chrsstrm on Wednesday February 06, 2019 @10:22PM (#19102727)
The $64,000 question is if they eventually are able to connect a ghost profile to a real profile, then shouldn't that data be available in the data export of the real profile? I've downloaded all my data before but just kicked off another one to check again. If someone in the EU was in the same situation I'd like to see what their data download looks like given the new privacy and data rules under GDPR.
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Re:Facebook will reveal who uploaded your contact info for a... by r3bl on Thursday February 07, 2019 @04:12AM (#19104009)
> If someone in the EU was in the same situation I'd like to see what their data download looks like given the new privacy and data rules under GDPR.

Once an EU citizen contacts them and requests the dump, they get redirected to the same tool. You have to explicitly bug them and quote the article 15 (of the GDPR) a few times to receive a different dump.

Disclosure: I haven't done this personally, but I have talked to people who did and read their interactions with Facebook. I can't guarantee that this info is still up-to-date, since that happened months after GDPR went into effect.

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Re:Facebook will reveal who uploaded your contact info for a... by sexyrouter on Wednesday February 06, 2019 @11:16PM (#19102955)
That's the data you never provided them.

That data is in blackbox ML system which is exclusively for ad targeting, and it can't be described :) that's the Facebook's defense.

GDPR doesn't cover the intermediate info AI/ML generates on you.

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