One thing I’m concerned about is recording equipment leaving identifiable information without us knowing about it.
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That ATM cash tracking thing comes to mind
What is it?
Banks can track each banknotes serial number when you receive them from the ATM and when they are returned from the store you spent them at. This data could then be used to create a complete profile of your spending habits.
Doesn’t work very well if you buy something directly from someone. Or if your cash is given out as change. Seems like it would make a wildly inaccurate profile.
