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Loyalty cards sharing app
(lemmy.world)
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this post was submitted on 21 Aug 2023
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Privacy
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When you sing up for such a card, do they usually check it? I can image some stores checking your ID the first time.
May depend on where you live. Around here they don't.
And you can always say you forgot your ID.
Some do, some don't in my experience. They will still build a profile on whoever uses the card though. Then they just need to tie that to a real identity later. Are you paying with a card with your name on it? Whether they would invest any time putting the profile together this way or not is another matter. But they could.
It's like the data anonymization claims from big tech. Many claim the data they collect is all anonymized, but lots of researchers and studies have shown how easy it is to deanonymize the data and build strong profiles on individual users from anonymized data.