this post was submitted on 13 Dec 2023
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[–] Fake4000@lemmy.world 11 points 2 years ago (7 children)

That's because his/her data isn't included. The decision would be different if that data included his/her shopping history.

[–] mannycalavera@feddit.uk 2 points 2 years ago* (last edited 2 years ago) (6 children)

That's no fun for the guardian. Gotta get those clicks with controversial misleading headlines. Totally not a tabloid, totally....

What this article fails to explain is what exactly they are selling and how that is matched up to groups of users. It also fails to explain how advertising is linked to anonymous users at the other end and how throughout all of this it's just a random ID they are targeting rather than Mr Phillips from Doncaster. It doesn't explain at all the mechanism to do this because it doesn't match the narrative they want to push of outrage. It only mentions it in passing and of you don't already know how these things work you're still none the wiser.

Never stop being the guardian, never stop. 😂🤣😂.

[–] Primarily0617@kbin.social 3 points 2 years ago (1 children)

you can't "anonymize" data

ask the people outed as lgbt by netflix's anonymized data set

[–] mannycalavera@feddit.uk 1 points 2 years ago (1 children)

You absolutely can anonymise data.

However it's also true that of you don't do it correctly users can be identified. Sounds like Netflix didn't do it properly. I don't know, do you have a link I could look at?

[–] Primarily0617@kbin.social 3 points 2 years ago (1 children)

anonymising data is a treadmill problem

what might work now won't hold up to the de-anonymising techniques of a few years from now

so no, you can't really

[–] mannycalavera@feddit.uk 1 points 2 years ago (1 children)

Create anonymous UUID, store interactions against this in a separate table, ensure PII is removed prior to storing. So instead of Max Reboo has purchased a subscription to jugs and hooters it's user 12345678901234576 has purchased jugs and hooters. How can a future treadmill de-anonymise this? For sure if the storage is done badly then you can track back to a particular user.

Also, once again, can you link to the netflix issue you quoted above please. Thanks.

[–] Primarily0617@kbin.social 3 points 2 years ago* (last edited 2 years ago)

Create anonymous UUID, store interactions against this in a separate table, ensure PII is removed prior to storing

which is more or less exactly what netflix did -> the whole thing's not that hard to find on google

but you need something to distinguish users at least a bit or the data's equivalent to sales figures

you combine that "not-quite-pii" with other independent data sources that have similar "not-quite-pii" and build a complete picture

the treadmill effect comes from active research in this exact area trying to de-anonymise data sets finding new techniques to get around old ones

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