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The article claims geolocation data, which you aren't going to get from the public blockchain.

Where's that coming from? Maybe other unspecified "public" sources.

It seems suspicious though, like they are getting it from geolocating IP addresses of their users, and correlating those to transactions -- that is not public info at all. But perhaps they get the geolocation info from some other source unrelated to their users?

Personally if my bank was also in the business of spying on financial transactions commercially... I wouldn't feel super secure about my choice of bank.




> Personally if my bank was also in the business of spying on financial transactions commercially... I wouldn't feel super secure about my choice of bank.

Are you aware that your (bank-issued) credit card purchase data is almost certainly sold commercially, linked to a unique identifier?

There's companies that buy mobile advertising data and crosslink it to credit card purchase data to track real-world conversions from online advertising.

I say this to reinforce your suspicions, not to discredit them.


I was not. That oughta be illegal. I wonder if my credit union issued visa card does that too. Or is it visa/mastercard doing it?


There are lots of public sources for the IP address each transaction was first broadcast from as it propagates across the network..

That gives you a clue where the user is located.




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