this post was submitted on 11 Nov 2024
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De-identified data is an oxymoron. Basically any dataset that's in any way interesting is identifiable.
no it's not. If you reduce the information in the datapoints until none of them are unique, then it is very obviously impossible to uniquely identify someone from them. And when you have millions of users the data can definitely still be kept interesting
(though there's pretty big pitfalls here, as their report seems to leave open the possibility of not doing it correctly)