The bank I've long used is constantly reminding me that it shares data with its 'affiliates'. So I give it very little data to share.
One of the courses is over disclosure of information to third parties. This info isn’t part of my personal bau, so I might have it wrong, but:
There are two kinds of data sharing a bank does with affiliates, necessary for business (credit checks, appraisal companies, etc) that you cannot opt out of.
Then there’s everything else which you can.
It’s in legalese, but you can ask someone at your bank how to opt out of as much as possible.
It doesn’t help much, but it’s something I guess(?)
Turns out our society is really not designed for someone without a physical residence. It’s made for a frustrating year for me.
(They've since retracted that plan after the plan was met with widespread disapproval. I don't think they've tried again since.)
At least in the US, banks requiring all sorts of information do it not even as their own business choice -- they do it because government regulators insist that this data is collected because security, because terrorism, because money laundering, etc.