submitted 1 year ago by to_urcite_ty_kokos@lemmy.world to c/privacy@lemmy.ml

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Hi, I was wondering if there is an app that enables loyalty cards sharing. When you open it, you can enter your card code of the Store. Now you can use a card of any other participant who entered his own card for the Store (the backend will send a random one) and your code can be used by anyone else using the service. Usually the cards are just permanent ID (shown as a bar code), so it shouldn't be that hard to implement.

While using this, the shop would have no chance of creating a profile on you and tracking you (as the purchases would be “random”), they have these data anyway. You would only give up the data you fill in when you ask for the card.

Do you know something like this? Or am I missing something important, or do you see some major flaws in this design (I don't use loyalty cards, but sometimes they could be quite useful)? Thanks

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[-] VolunTerry@monero.town 1 points 1 year ago

This isn't a bad idea, but the original poster's setup is much better for privacy. It would be similar to a VPN with shared IPs, so would obfuscate the individual users by lumping in the shopping habits with tons of other users making any profile built on that cards use unable to be tied to a specific person.

As I mentioned in another comment on this thread, even if you were to get a generic loyalty card with no info tied to it, or fake credentials, it will still be attributed to a single person/household where they build a solid marketing profile and may tie it to credit card or other revealing financial or tracking information that is unique to that user.

this post was submitted on 21 Aug 2023

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