I don't remember how it is called exactly but remember a lot of countries exchange banks information now, and the countries list is quite big
Thanks for this link. Very informative.
This list needs to be updated...
You may check the list of countries which automatically exchange banking information, here:
https://www.oecd.org/tax/transparency/AEOI-commitments.pdf
And you may also look for an eventual bilateral tax agreement between the country where you're a resident, and the country where you're planning to bank. But you have to be smart to aviod paying tax these days.