Comment on Sainsbury’s boss defends decision to sell customers’ Nectar card data

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Primarily0617@kbin.social ⁨1⁩ ⁨year⁩ 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

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