Comment on Sainsbury’s boss defends decision to sell customers’ Nectar card data
Primarily0617@kbin.social 11 months agoanonymising 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 11 months ago
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 11 months ago
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