How do they know what my income is?
If you aren’t 100% committed to data privacy all the time, which is damn hard to do and live in society, they could probably tell how many pimples you have on your ass and charge accordingly.
Even if you were 100% perfectly committed, there would be all sorts of little signals and things that would leak out enough for them to adjust pricing accordingly. The kind of clothes you’re wearing, the time of day you’re shopping at, your gait, expression, etc.
Even if you were able to perfectly exclude all information about you, it’s possible to gather data from the hole that you leave behind. You aren’t leaving data behind like a lot of other customers, so that would probably make you either old, or privacy-inclined. You’re not buying the same things as an old person, so you’re not old, and you can pick it up from there.
If you post your order through an app or a website where you log in first, then it’s not so hard for them to get financial information on you. That’s why I strongly recommend against using, for example, the McDonald’s app. Because they can do price fixing and you will never see it. Of course this is about grocery stores, so it takes a little more effort, but remember that they already have member cards, so all they need is a way to link those member cards to more data, and they can buy that data easily enough.
In other words, the data is already there for the taking. The question is how exactly the scam will unfold. It’s going to unfold, but what will the details be? Pay attention, because it’s going to happen or already is happening to you or people around you.
Because they can pay 10 million to a consulting firm to develop a customer-profiling model that predicts their income based on the most recent purchases with a 10% margin of error.
