you just go to a bank and show your documents in person. they're not gonna scan or copy anything this way.
https://www.ncua.gov/files/regulatory-alerts/RA2005-05Encl.pdf2. Can a bank keep copies of documents provided to verify a customers identity, in
addition to the description required under 31 C.F.R. § 103.121(b)(3)(i)(B), even if it is
not required to do so?
Yes, a bank may keep copies of identifying documents that it uses to verify a customers
identity.
I think it's safe to assume that some banks do keep scans. It's been ages since I opened an account, but I'm pretty sure they made photocopies of my ID.
well they don't do that here in the EU. yeah i've heard they sometimes try to, but then you could always refuse and simply go to another bank.
and now with GDPR, they have it even harder to ask for your data, they can't do much with it and you have to give explicit permission for anything they'd want to do with it.
so no scanning ids here.